Molcan Corporation (Page 4) @ ChemBuyersGuide.com, Inc.

1-(1H-Benzimidazol-2-yl)-3-methyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid ;
CAS:1163685-30-0
RBP03A :
Rabeprazole EP Impurity C (Acid) ; Rabeprazole USP RC A ; Lansoprazole Impurity 13 ;

1-(1H-Benzo[d]imidazol-2-yl)-2,3-dimethylpyridin-4(1H)-one ;
LSP51 :
Lansoprazole Pyridinone ;

1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)-N-((4R)-8-fluoro-2-hydroxy-4-(hydroxymethyl)-1,1-dimethyl-1,2,4,5-tetrahydro-[1,4]oxazepino[4,5-a]indol-9-yl)cyclopropane-1-carboxamide ;
CAS:1432656-97-7
TZC71 :
Tezacaftor Metabolite M1 ;

1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)-N-(5-methyl-6-(3-pentanoylphenyl)pyridin-2-yl)cyclopropanecarboxamide ;
LMF51 :
Lumacaftor Impurity 1 ;

1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)cyclopropanecarboxylic acid ;
CAS:862574-88-7
TZC62 :
Tezacaftor RC 2 ;

1-(2,3,4-Trimethoxybenzyl)piperazine ;
CAS:5011-34-7
TMD00B :
Trimetazidine (Base) ;

1-(2,3,4-Trimethoxybenzyl)piperazine 1-oxide dihydrochloride ;
CAS:2731228-51-4
TMD51H :
Trimetazidine N-Oxide Dihydrochloride ;

1-(2,3,4-Trimethoxybenzyl)piperazine dihydrochloride ;
CAS:13171-25-0
TMD00H :
Trimetazidine (2HCl) ; Trimetazidine Dihydrochloride ;

1-(2,3,5-Tri-O-acetyl-+¦-D-ribofuranosyl)-1,2,4-triazole-3-carboxamide ;
CAS:40372-03-0
RBV53 :
Ribavirin Triacetate ;

1-(2,3-Dideoxy-+¦-D-glycero-pent-2-enofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione ;
STV05 :
Stavudine EP Impurity E ; Stavudine alpha-Isomer ; Stavudine alpha-Anomer ;

1-(2,3-Dimethylphenyl)-1-(1-(trimethylsilyl)-1H-imidazol-4-yl)ethanol ;
CAS:1587636-56-3
MDT67 :
Medetomidine RC7

1-(2,3-Dimethylphenyl)-1-(1-trityl-1H-imidazol-4-yl)ethanol ;
CAS:176721-03-2
MDT61 :
Medetomidine RC1

1-(2,3-Dimethylphenyl)-1-(1H-imidazol-5-yl)ethanol ;
CAS:86347-12-8
MDT57 :
Medetomidine Hydroxy Impurity ;

1-(2,3-Epoxypropoxy)-2-methoxybenzene ;
CAS:2210-74-4
RNL21 :
Ranolazine USP RC A ;

1-(2,4,5-Trimethoxybenzyl)piperazine ;
CAS:356083-64-2
TMD05B :
Trimetazidine EP Impurity E (Base) ;

1-(2,4,5-Trimethoxybenzyl)piperazine dihydrochloride ;
CAS:2518359-32-3
TMD05H :
Trimetazidine EP Impurity E (2HCl) ;

1-(2,4,6-Trihydroxyphenyl)ethanone ;
CAS:480-66-0
PLG53 :
Phloroglucinol Acetyl ;

1-(2,4,6-Trimethoxybenzyl)piperazine dihydrochloride ;
CAS:113698-83-2
TMD06H :
Trimetazidine EP Impurity F (2HCl) ;

1-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-yl)ethanone hydrochloride ;
CAS:98164-08-0
OCZ23H :
Oxiconazole USP RC C ;

1-(2,4-Dichlorophenyl)-2-(4H-1,2,4-triazol-4-yl)ethanone ;
CAS:132653-23-7
PCN64 :
Propiconazole RC 4 ;

1-(2,4-Difluorophenyl)-2-(1H-1,2,4-triazol-1-yl)ethanone ;
CAS:86404-63-9
VRC01 :
Voriconazole EP Impurity A ; Voriconazole USP RC C ; Fluconazole EP Impurity E ; Fluconazole Keto Impurity ; Voriconazole Triazole Acetophenone Impurity (USP) ;

1-(2,4-Dimethylphenoxy)propan-2-amine ;
CAS:180966-61-4
MLT50B :
Mexiletine 2,4-Dimethyl Analog (Base) ;

1-(2,4-Dimethylphenoxy)propan-2-amine hydrochloride ;
CAS:29238-40-2
MLT50H :
Mexiletine 2,4-Dimethyl Analog (HCl) ;

1-(2,5-Dimethylphenoxy)propan-2-amine ;
CAS:117322-92-6
MLT62B :
Mexiletine RC 2 (Base) ;

1-(2,5-Dimethylphenoxy)propan-2-amine hydrochloride ;
CAS:29361-43-1
MLT62H :
Mexiletine RC 2 (HCl) ;

1-(2,6-Dichlorobenzyl)-1H-imidazole ;
CAS:102993-73-7
ISZ54 :
Isoconazole Impurity 4 ;

1-(2,6-Difluorobenzyl)-1H-1,2,3-triazole-4-carboxylic acid ;
CAS:166196-11-8
RFN61 :
Rufinamide Acid ;

1-(2,6-Difluorobenzyl)-1H-1,2,3-triazole-4-carboxylic acid methyl ester ;
CAS:217448-86-7
RFN22 :
Rufinamide USP RC B ; Rufinamide Methyl Ester ;

1-(2,6-Dimethylphenoxy)-N-hydroxy-2-propanamine ;
CAS:55304-17-1
MLT53B :
Mexiletine N-Hydroxy Impurity (Base) ;

1-(2,6-Dimethylphenoxy)-N-hydroxy-2-propanamine oxalate ;
CAS:57204-78-1
MLT53X :
Mexiletine N-Hydroxy Impurity (Oxalate) ;

1-(2,6-Dimethylphenoxy)propan-2-ol ;
CAS:61102-09-8
MLT63 :
Mexiletine RC 3 ;

1-(2,6-Dimethylphenoxy)propan-2-one ;
CAS:53012-41-2
MLT02 :
Mexiletine EP Impurity B ;

1-(2,6-Dimethylphenyl)-3-(3-hydroxypropyl)thiourea ;
CAS:120077-91-0
XLZ04 :
Xylazine EP Impurity D ;

1-(2-((2,4-Dimethylphenyl)sulfonyl)phenyl)piperazine ;
CAS:1639263-80-1
VXT84 :
Vortioxetine Sulfone ;

1-(2-((2,4-Dimethylphenyl)thio)phenyl)-4-nitrosopiperazine ;
CAS:2925447-38-5
VXT50 :
Vortioxetine N-Nitroso Impurity ;

1-(2-((3,5-Dimethylphenyl)thio)phenyl)piperazine ;
CAS:508233-75-8
VXT29B :
Vortioxetine USP RC I (Base) ;

1-(2-((3,5-Dimethylphenyl)thio)phenyl)piperazine HBr ;
CAS:3070439-20-9
VXT29X :
Vortioxetine USP RC I (HBr) ;

1-(2-((3-Bromo-2,4-dimethylphenyl)thio)phenyl)piperazine hydrobromide ;
VXT57H :
Vortioxetine 3-Bromo Impurity ;

1-(2-((3-Chloro-2,4-dimethylphenyl)thio)phenyl)piperazine ;
CAS:2425618-51-3
VXT58B :
Vortioxetine 3-Chloro Impurity (Base) ;

1-(2-((3-Chloro-2,4-dimethylphenyl)thio)phenyl)piperazine hydrobromide ;
VXT58H :
Vortioxetine 3-Chloro Impurity (HBr) ;

1-(2-(2,4,6-Trichloro-3-hydroxyphenyl)acetyl)guanidine ;
GFC55 :
Guanfacine 3-Hydroxy 4-Chloro ;

1-(2-(2,4-Dimethyl-5-(2-(piperazin-1-yl)phenylthio)phenylthio)phenyl)piperazine ;
CAS:2099147-02-9
VXT73 :
Vortioxetine RC 23 ;

1-(2-(2,4-Dimethylphenylsulfinyl)phenyl)piperazine ;
CAS:1429908-35-9
VXT85B :
Vortioxetine Sulfoxide ;

1-(2-(2,4-Dimethylphenylsulfinyl)phenyl)piperazine fumarate ;
VXT85F :
Vortioxetine Sulfoxide Fumarate ;

1-(2-(2,4-Dimethylphenylsulfinyl)phenyl)piperazine HBr ;
CAS:2228086-73-3
VXT85X :
Vortioxetine Sulfoxide HBr ;

1-(2-(2,4-Dimethylphenylsulfinyl)phenyl)piperazine HCl ;
CAS:2236051-10-6
VXT85H :
Vortioxetine Sulfoxide HCl ;

1-(2-(2,4-Dimethylphenylthio)phenyl)-4-methylpiperazine ;
CAS:1293489-87-8
VXT43B :
Vortioxetine N-Methyl Analog (Base) ;

1-(2-(2,4-Dimethylphenylthio)phenyl)-4-methylpiperazine hydrobromide ;
VXT43X :
Vortioxetine N-Methyl Analog (HBr) ;

1-(2-(2,5-Difluorophenyl)-2-hydroxy-3-(5-(4-(methylamino)phenyl)thiazol-2-yl)butyl)-4-(1-((methyl(3-((2-(methylamino)acetoxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium chloride ;
ISV75 :
Isavuconazole RC 15 ;

1-(2-(2,5-Dimethylphenylthio)phenyl)piperazine ;
CAS:508233-77-0
VXT28B :
Vortioxetine USP RC H (Base) ;

1-(2-(2,5-Dimethylphenylthio)phenyl)piperazine HBr ;
CAS:3070439-19-6
VXT28X :
Vortioxetine USP RC H (HBr) ;

1-(2-(2,9-Dimethyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-3-yl)ethyl)-4-(6-fluorobenzo[d]isoxazol-3-yl)piperidine 1-oxide ;
PPD79 :
Paliperidone RC 19 ;

1-(2-(2-Chloroethoxy)ethyl)-2-methyl-5-nitro-1H-imidazole ;
CAS:16156-93-7
MND62 :
Metronidazole RC 2 ; Chloroethoxy Metronidazole ;

1-(2-(2-Hydroxy-3-(nitroso(propyl)amino)propoxy)phenyl)-3-phenylpropan-1-one ;
PRP48 :
Propafenone N-Nitroso Impurity ;

1-(2-(3-(((2R,3R,4R,5S,6R)-3,4-Dihydroxy-6-(hydroxymethyl)-5-(((2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)tetrahydro-2H-pyran-2-yl)(propyl)amino)-2-hydroxypropoxy)phenyl)-3-phenylpropan-1-one ;
PRP53 :
Propafenone Lactose Adduct ;

1-(2-(3-(Benzylamino)-2-hydroxypropoxy)phenyl)-3-phenylpropan-1-one ;
CAS:178691-47-9
PRP54 :
Propafenone N-Despropyl N-Benzyl ;

1-(2-(4-((1R,2S)-6-Hydroxy-2-phenyl-1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy) ethyl)pyrrolidin-2-one ;
CAS:366017-88-1
LSF52 :
Lasofoxifene Lactam ; 2-Oxo Lasofoxifene ;

1-(2-(4-((1RS,2SR)-6-Methoxy-2-phenyl-1,2,3,4-tetrahydronaphthalen-1-yl)phenoxy) ethyl)pyrrolidine ;
CAS:4796-75-2
LSF57 :
Lasofoxifene 7-Methoxy Racemate ;

1-(2-(4-(2-(2,4-Dimethylphenylthio)phenyl)piperazin-1-yl)phenyl)piperazine ;
CAS:1240670-85-2
VXT64 :
Vortioxetine RC 14 ;

1-(2-(4-(6-Methoxy-2-phenyl-3,4-dihydronaphthalen-1-yl)phenoxy)ethyl)pyrrolidine ;
CAS:1845-11-0
NXD00B :
Nafoxidine (Base) ;

1-(2-(4-(6-Methoxy-2-phenyl-3,4-dihydronaphthalen-1-yl)phenoxy)ethyl)pyrrolidine hydrochloride ;
CAS:1847-63-8
NXD00H :
Nafoxidine (HCl) ; Nafoxidine Hydrochloride ;

1-(2-(4-Methoxyphenethyl-N-nitroso-amino)-1-(4-methoxyphenyl)ethyl)cyclohexanol ;
VLF58B :
Venlafaxine EP Impurity H N-Nitroso Impurity ;

1-(2-(4-Methoxyphenethylamino)-1-(4-methoxyphenyl)ethyl)cyclohexanol ;
CAS:1329795-88-1
VLF08B :
Venlafaxine EP Impurity H (Base) ;

1-(2-(4-Methoxyphenethylamino)-1-(4-methoxyphenyl)ethyl)cyclohexanol hydrochloride ;
VLF08H :
Venlafaxine EP Impurity H (HCl) ;

1-(2-(Decanoyloxy)ethyl)-4-(3-(2-(trifluoromethyl)-10H-phenothiazin-10-yl)propyl)piperazine 1, 4-dioxide ;
CAS:76005-65-7
FPD50 :
Fluphenazine Decanoate Di-N-Oxide ;

1-(2-(Ethylthio)ethyl)-2-methyl-4-nitro-1H-imidazole ;
CAS:13230-19-8
TND62 :
Tinidazole RC 2 ;

1-(2-(Ethylthio)ethyl)-2-methyl-5-nitro-1H-imidazole ;
CAS:28795-33-7
TND61 :
Tinidazole RC 1 ;

1-(2-(Methylthio)-10H-phenothiazin-10-yl)ethanone ;
CAS:23503-69-7
MPZ61 :
Metopimazine RC 1 ;

1-(2-(p-Tolylthio)phenyl)piperazine hydrochloride ;
CAS:508234-03-5
VXT74H :
Vortioxetine RC 24 (HCl) ;

1-(2-(Piperazin-1-yl)phenyl)piperazine ;
CAS:1446750-99-7
VXT70 :
Vortioxetine RC 20 ;

1-(2-Bromoethoxy)-2-(2,2,2-trifluoroethoxy)benzene ;
CAS:160969-00-6
SLD71 :
Silodosin RC 1 ;

1-(2-Bromoethoxy)-2-ethoxybenzene ;
CAS:3259-03-8
TMS09 :
Tamsulosin EP Impurity I ;

1-(2-Bromophenyl)piperazine ;
CAS:1011-13-8
VXT63B :
Vortioxetine RC 13 (Base)

1-(2-Bromophenyl)piperazine dihydrochloride ;
VXT63H :
Vortioxetine RC 13 (2HCl)

1-(2-Chloro-2-(((1R,3S,5R)-3-hydroxyadamantan-1-yl)amino)acetyl)pyrrolidine-2-carbonitrile ;
VDG78 :
Vildagliptin Impurity 8 ; Vildagliptin Chloro Impurity ;

1-(2-Chloro-4-(6-cyano-7-methoxyquinolin-4-yloxy)phenyl)-3-cyclopropylurea ;
CAS:1882873-21-3
LVT69 :
Lenvatinib RC 9 ; 6-Cyano Lenvatinib ; LBM3 Nitrile Impurity ;

1-(2-Chloro-4-nitrophenyl)ethanone ;
CAS:67818-41-1
PCN63 :
Propiconazole RC 3 ;

1-(2-Chloro-ethyl)-3-cyclohexyl-1-nitrosourea ;
CAS:13010-47-4
LMS00 :
Lomustine ;

1-(2-Chloroethyl)-3-(cis-4-hydroxycyclohexyl)-1-nitrosourea ;
CAS:52049-26-0
LMS54 :
Lomustine cis-4-Hydroxy Impurity ;

1-(2-Chloroethyl)-3-(dicyclopropylmethyl)urea ;
CAS:54187-03-0
RMD02 :
Rilmenidine EP Impurity B ;

1-(2-Chloroethyl)-3-(trans-4-hydroxycyclohexyl)-1-nitrosourea ;
CAS:56239-24-8
LMS64:
Lomustine trans-4-Hydroxy Impurity ;

1-(2-Chloroethyl)-3-cyclohexylurea ; N-(2-Chloroethyl)-N-cyclohexylurea ;
CAS:13908-11-7
LMS22 :
Lomustine USP RC B ; Lomustine EP Impurity B ;

1-(2-Chloroethyl)piperidine ;
CAS:1932-03-02 00:00:00
LCP62B :
Levocloperastine CEP Impurity (Base) ;

1-(2-Chloroethyl)piperidine hydrochloride ;
CAS:2008-75-5
LCP62H :
Levocloperastine CEP Impurity (HCl) ;

1-(2-Deoxy-+ƒ-D-threo-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione ;
CAS:16053-52-4
ZDV06 :
Zidovudine EP Impurity F ; 3'-+¦-Thymidine ; Stavudine EP Impurity B ;

1-(2-Deoxy-+¦-D-threopentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione ;
CAS:16053-52-4
STV02 :
Stavudine EP Impurity B ; Zidovudine EP Impurity F ; 3GÇÖ-+¦-Thymidine ; Thymidine 3'-Epimer ;

1-(2-Dimethylamino-1-phenylethyl) cyclohexanol ; Desmethoxy Venlafaxine ;
CAS:93413-86-6
VLF37B :
Venlafaxine Desmethoxy Impurity ; Venlafaxine RC 4 ;

1-(2-Ethoxyphenoxy)-3-(2-((2-ethoxyphenoxy)methyl)morpholino)propan-2-ol ;
VLX61 :
Viloxazine Dimer Impurity ;

1-(2-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide hydrochloride ;
CAS:256499-19-1
RCG64H :
Riociguat RC 4 (HCl) ;

1-(2-Fluorobenzyl)-6-(4-aminophenyl)-5-((dimethylamino)methyl)-3-(6-methoxypyridazin-3-yl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione ;
RLG61 :
Relugolix RC 1 ;

1-(2-Fluorobiphenyl-4-yl)ethanone ;
CAS:42771-79-9
FLB04 :
Flurbiprofen EP Impurity D ;

1-(2-Fluorophenyl)piperidine-4-carboxylic acid ;
CAS:851264-62-5
PPD68 :
Paliperidone RC 8 ;

1-(2-Hydroxy-4-mercapto-3-propylphenyl)ethanone ;
CAS:74891-64-8
TLK68 :
Tipelukast RC 8 ;

1-(2-Hydroxyethyl)-2-methyl-1H-imidazol-5-ol ;
CAS:138169-63-8
MND66 :
Metronidazole RC 6 ;

1-(2-Hydroxyethyl)-2-methyl-5-nitroimidazole ;
CAS:443-48-1
MND00B :
Metronidazole ;

1-(2-Hydroxyethyl)-2-methyl-5-nitroimidazole ;
CAS:443-48-1
MNB01 :
Metronidazole Benzoate EP Impurity A ; Metronidazole ;

1-(2-Hydroxyethyl)-2-methyl-5-nitroimidazole disodium phosphate ;
MND00P :
Metronidazole Disodium Phosphate ;

1-(2-Hydroxyphenyl)-3-phenylpropan-1-one ;
CAS:3516-95-8
PRP01 :
Propafenone EP Impurity A ;

1-(2-Hydroxyphenyl)ethanone ;
CAS:118-93-4
PCM09 :
Paracetamol EP Impurity I ;

1-(2-Methoxyphenoxy)-3-(4-nitroso-piperazin-1-yl)propan-2-ol ;
RNL56B :
Ranolazine N-Nitroso Analog ; N-Desacetamido N-Nitroso Ranolazine ;

1-(2-Methoxyphenoxy)-3-(piperazin-1-yl)propan-2-ol ;
CAS:162712-35-8
RNL52B :
Ranolazine N-Desacetamido Impurity ;

1-(2-Methoxyphenoxy)-3-(trityloxy)propan-2-yl carbamate ;
MTC65 :
Methocarbamol Impurity 5 ; O-Trityl Isomethocarbamol ;

1-(2-Methyl-5-nitro-1H-imidazol-1-yl)propan-2-ol ;
CAS:3366-95-8
SND00 :
Secnidazole ;

1-(2-Methyl-5-nitro-1H-imidazol-1-yl)propan-2-one ;
CAS:31876-69-4
ODZ62 :
Ornidazole RC 2 ;

1-(2-Methyl-5-nitro-1H-imidazol-1-yl)propan-2-one ;
CAS:31876-69-4
OPD62 :
Orphenadrine RC 2 ;

1-(2-Methyl-5-nitro-1H-imidazol-1-yl)propan-2-yl formate ;
SND51 :
Secnidazole Formate ;

1-(2-Methylpropyl)-4-[(3RS)-3-[4-(2-methylpropyl)phenyl]butyl]benzene ;
CAS:2143535-26-4
IBP09 :
Ibuprofen EP Impurity I ; Ibuprofen BP Impurity I ;

1-(2-Methylpropyl)piperidin-4-one ;
CAS:72544-16-2
RFB01 :
Rifabutin EP Impurity A ;

1-(3,4,5,6-Tetrahydrophthalimido)-2,3-dihydroxypropane ;
CAS:62457-35-6
RVR49 :
Rivaroxaban Glyceryl Phthalimide Impurity ;

1-(3,4,5-Trimethoxybenzyl)piperazine ;
CAS:52146-35-7
TMD01B :
Trimetazidine EP Impurity A ;

1-(3,4-Dichlorophenyl)-4-(3-chloropropyl)piperazine ;
CAS:101364-27-6
NFZ34B :
Nefazodone 3,4-Dichlorophenyl Impurity ;

1-(3,4-Dichlorophenyl)-5-isopropylbiguanide ;
CAS:537-21-3
PGN06B :
Proguanil EP Impurity F (Base) ; Proguanil USP RC F (Base) ; Chlorproguanil ;

1-(3,4-Dichlorophenyl)-5-isopropylbiguanide hydrochloride ;
CAS:6001-93-0
PGN06H :
Proguanil EP Impurity F (HCl) ; Proguanil USP RC F (HCl) ; Chlorproguanil HCl ;

1-(3,4-Dihydroxyphenyl)-2-[(1-methylethyl)amino]-ethanone ;
CAS:121-28-8
IPL01B :
Isoprenaline EP Impurity A (Base) ; Isoproterenol EP Impurity A ; Isoprenaline USP RC A ; Isoproterenol USP RC A ;

1-(3,4-Dihydroxyphenyl)-2-[(1-methylethyl)amino]-ethanone HCl ;
CAS:16899-81-3
IPL01H :
Isoprenaline EP Impurity A (HCl) ; Isoproterenol EP Impurity A (HCl) ; Isoprenaline USP RC A (HCl) ; Isoproterenol USP RC A (HCl) ;

1-(3,4-Dimethoxyphenyl)-2-methylpropan-1-one ;
CAS:14046-55-0
VRP12 :
Verapamil EP Impurity L ;

1-(3,5-Anhydro-2-deoxy-+¦-D-threo-pentofuranosyl)-5methylpyrimidine-2,4(1H,3H)-dione ;
CAS:7481-90-5
STV06 :
Stavudine EP Impurity F ; Stavudine BP Impurity F ;

1-(3,5-bis(Benzyloxy)phenyl)-2-(tert-butylamino)ethanol ;
CAS:28924-25-6
TBT35B :
Terbutaline 3,5-Dibenzyl Ether ;

1-(3,5-Dihydroxyphenyl)-2-[(1,1-dimethylethyl)amino]-ethanone ;
CAS:139508-58-0
TBT03B :
Terbutaline EP Impurity C (Base) ; Terbutaline USP RC A ; Terbutalone ; 1-Oxo Terbutaline ;

1-(3,5-Dihydroxyphenyl)-2-[(1,1-dimethylethyl)amino]-ethanone hydrochloride ;
CAS:1246815-70-2
TBT03H :
Terbutaline EP Impurity C (HCl) ; Terbutaline USP RC A (HCl) ; Terbutalone HCl ; 1-Oxo Terbutaline HCl ;

1-(3,5-Dihydroxyphenyl)-2-[(1-methylethyl)amino]ethanone ;
CAS:94200-14-3
OCP02B :
Orciprenaline EP Impurity B ; Alupentketone ; Metaproterenol EP Impurity B ;

1-(3,5-Dihydroxyphenyl)-2-[(1-methylethyl)amino]ethanone sulfate ;
CAS:94200-15-4
OCP02S :
Orciprenaline EP Impurity B (Sulfate) ; Alupentketone Sulfate ;

1-(3-((4-((4-Chlorophenyl)(phenyl)methyl)piperazin-1-yl)methyl)benzyl)-4-((4-chlorophenyl)(phenyl)methyl)piperazine ;
CAS:1207847-84-4
MCL04 :
Meclizine EP Impurity D ; Meclozine EP Impurity D ; Meclizine Dimer ;

1-(3-(2-(Dimethylamino)ethyl)-3-hydroxy-2-oxoindolin-5-yl)-N-methyl methane sulfonamide ;
CAS:2250254-19-2
SMT32 :
Sumatriptan 3-Hydroxy-2-Oxo Impurity ; Sumatriptan Hydroxy Oxindole (USP) ;

1-(3-(2-(Dimethylamino)ethyl-2-((5-((N-methylsulfamoyl)methyl)-1H-indol-3-yl)methyl)-1H-indo-5-yl)-N-methylmethanesulfonamide ;
SMT43 :
Sumatriptan C-C Dimer ;

1-(3-(2-(Methylsulfonyl)-10H-phenothiazin-10-yl)propyl)piperidine-4-carboxamide ;
CAS:14008-44-7
MPZ00B :
Metopimazine ;

1-(3-(2-(Methylsulfonyl)-10H-phenothiazin-10-yl)propyl)piperidine-4-carboxylic acid ;
CAS:18182-00-8
MPZ50A :
Metopimazine Acid ;

1-(3-(2-Acetyl-5-(2-bromo-1-hydroxyethyl)benzyl)-2-acetyl-5-(2-bromo-1-hydroxyethyl)phenyl)propan-2-one ;
CAS:438246-23-2
SAB66 :
Salbutamol RC 6 ;

1-(3-(2-Acetyl-5-(oxiran-2-yl)benzyl)-2-acetyl-5-(oxiran-2-yl)phenyl)propan-2-one ;
CAS:438246-24-3
SAB65 :
Salbutamol RC 5 ;

1-(3-(2-Chloro-10H-phenothiazin-10-yl)propyl)-4-(2-hydroxyethyl)piperazine 1-oxide ;
CAS:1254074-25-3
PPZ71 :
Perphenazine Impurity 1 ;

1-(3-(3,5-Dimethylphenoxy)-2-hydroxypropyl)-3,5-bis(oxiran-2-ylmethyl)-1,3,5-triazinane-2,4,6-trione ;
CAS:1392430-16-8
MXL64 :
Metaxalone RC 4 ;

1-(3-(3-(4-Chlorophenyl)propoxy) propyl) piperidine-1-oxide ;
PLS52 :
Pitolisant N-Oxide ;

1-(3-(3-(4-Chlorophenyl)propoxy)propyl)piperidine ;
CAS:362665-56-3
PLS00B :
Pitolisant (Base) ;

1-(3-(3-(4-Chlorophenyl)propoxy)propyl)piperidine hydrochloride ;
CAS:903576-44-3
PLS00H :
Pitolisant (HCl) ;

1-(3-(3-Phenylpropoxy) propyl)piperidine ;
CAS:362665-54-1
PLS51 :
Pitolisant Deschloro Impurity ;

1-(3-(4-(3-Chlorophenyl)piperazin-1-yl)propyl)-4-(2-phenoxyethyl)-1,2,4-triazolidine-3,5-dione ;
CAS:153707-88-1
NFZ35 :
Nefazodone 3,5-Dione ;

1-(3-(4-Acetyl-2-methoxyphenoxy)propyl)-4-(6-fluorobenzo[d]isoxazol-3-yl) piperidine 1-oxide ;
CAS:1375651-09-4
ILP49 :
Iloperidone N-Oxide ;

1-(3-(5-(4-(tert-Butoxy(imino)methyl)phenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-((2-(methylamino)acetoxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium chloride ;
ISV64 :
Isavuconazole RC 4 ;

1-(3-(5-(4-Aminophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-((2-(methylamino)acetoxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium chloride ;
ISV63 :
Isavuconazole RC 3 ;

1-(3-(5-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-((2-(methylamino)acetoxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H-1,2,4-triazol-4-ium chloride ;
ISV65 :
Isavuconazole RC 5 ;

1-(3-(5-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-((methyl(3-(5-methyl-2-(3-((2-(methylamino)acetoxy)methyl)pyridin-2-yl)-3,7,10-trioxo-4,6,11-trioxa-2,8-diazadodecan-12-yl)pyridin-2-yl)carbamoyl)oxy)ethyl)-1H
ISV66 :
Isavuconazole RC 6 ;

1-(3-(5-(4-Cyanophenyl)thiazol-2-yl)-2-(2,5-difluorophenyl)-2-hydroxybutyl)-4-(1-(1-((methyl(3-((2-(methylamino)acetoxy)methyl)pyridin-2-yl)carbamoyl)oxy)ethoxy)ethyl)-1H-1,2,4-triazol-4-ium chloride ;
ISV67 :
Isavuconazole RC 7 ;

1-(3-(Benzyloxy)phenyl)-2-bromopropan-1-one ;
CAS:20886-03-7
MRN61 :
Metaraminol RC 1 ;

1-(3-(Benzyloxy)propyl)-2-methyl-5-nitro-1H-imidazole ;
TNL50 :
Ternidazole O-Benzyl ;

1-(3-Aminophenyl)-3-cyclopropyl-5-(2-fluoro-4-iodophenylamino)-6,8-dimethylpyrido[4,3-d]pyrimidine-2,4,7(1H,3H,6H)-trione ;
CAS:871701-87-0
TNB54 :
Trametinib RC 4 ; Trametinib Desacetyl Impurity ;

1-(3-Azido-2,3-dideoxy-+¦-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione ;
CAS:30516-87-1
ZDV00 :
Zidovudine ;

1-(3-Benzoylphenyl)ethanone ;
CAS:66067-44-5
KTP01 :
Ketoprofen EP Impurity A ; Ketoprofen USP RC D ;

1-(3-Bromo-4-(hydroxymethyl)phenyl)ethanone ;
CAS:1418144-62-3
SNM68 :
Siponimod RC 8 ;

1-(3-Bromo-4-methylphenyl)ethanone ;
CAS:40180-80-1
SNM61 :
Siponimod RC 1 ;

1-(3-Bromopropyl)-4-(3-chlorophenyl)piperazine ;
CAS:142944-48-7
TZD64 :
Trazodone Impurity 4 ;

1-(3-Butoxypropyl)piperidine ;
CAS:875229-73-5
PLS70 :
Pitolisant RC 10 ; Pitolisant Butoxy Analog ;

1-(3-Carboxy-2-pyridyl)-4-methyl-2-phenylpiperazine ;
CAS:61338-13-4
MTZ30 :
Mirtazapine Carboxylic Acid ;

1-(3-Chloro-2,3-dideoxy-+¦-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione ;
CAS:25526-94-7
ZDV02 :
Zidovudine EP Impurity B ; Zidovudine USP RC B ; 3GÇ¦-Chloro-3GÇ¦-deoxythymidine (USP) ;

1-(3-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic acid ;
CAS:807614-94-4
IDM05 :
Indomethacin EP Impurity E ; Indomethacin 3-Chloro Analog ; 4-Dechloro-3-Chloroindomethacin ;

1-(3-Chlorophenyl)-4-(3-chloropropyl)piperazine ;
CAS:39577-43-0
TZD06B :
Trazodone BP Impurity F (Base) ; Trazodone USP RC F ;

1-(3-Chlorophenyl)-4-(3-chloropropyl)piperazine ;
CAS:39577-43-0
NFZ21B :
Nefazodone USP RC A (Base) ;

1-(3-Chlorophenyl)-4-(3-chloropropyl)piperazine hydrochloride ;
CAS:52605-52-4
TZD06H :
Trazodone BP Impurity F (HCl) ; Trazodone USP RC F (HCl) ;

1-(3-Chlorophenyl)-4-(3-chloropropyl)piperazine hydrochloride ;
CAS:52605-52-4
NFZ21H :
Nefazodone USP RC A (HCl) ;

1-(3-Chlorophenyl)-4-(3-hydroxypropyl)piperazine ;
CAS:32229-98-4
TZD09B :
Trazodone EP Impurity I (Base) ; Trazodone Hydroxypropyl Impurity ;

1-(3-Chlorophenyl)-4-(3-hydroxypropyl)piperazine HCl ;
TZD09H :
Trazodone EP Impurity I (HCl) ; Trazodone Hydroxypropyl Impurity (HCl) ;

1-(3-Chlorophenyl)-5-isopropylbiguanide hydrochloride ;
CAS:1071546-52-5
PGN07H :
Proguanil USP RC G (HCl) ;

1-(3-Chlorophenyl)piperazine ;
CAS:6640-24-0
TZD12B :
Trazodone EP Impurity L (Base) ; Nefazodone CPP Impurity (Base) ;

1-(3-Chlorophenyl)piperazine ;
CAS:6640-24-0
NFZ53B :
Nefazodone 3-CPP Impurity (Base) ;Trazodone EP Impurity L ;

1-(3-Chlorophenyl)piperazine HCl ;
CAS:13078-15-4 65369-76-8
NFZ53H :
Nefazodone 3-CPP Impurity (HCl) ; Trazodone EP Impurity L (HCl) ;

1-(3-Chlorophenyl)piperazine hydrochloride ;
CAS:65369-76-8 13078-15-4
TZD12H :
Trazodone EP Impurity L (HCl) ; Nefazodone CPP Impurity (HCl) ; Trazodone Chlorophenylpiperazine (HCl) ;

1-(3-Cyano-2-pyridyl)-4-methyl-2-phenylpiperazine ;
CAS:61337-88-0
MTZ31 :
Mirtazapine Cyano Impurity ;

1-(3-Cyano-3,3-diphenylpropyl)-2-methyl-1H-imidazolium phosphate ;
CAS:562091-56-9
IFN63 :
Imidafenacin RC 3 ;

1-(3-Ethyl-4-(hydroxymethyl)phenyl)ethanone ;
CAS:1378888-43-7
SNM64 :
Siponimod RC 4 ;

1-(3-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide ;
CAS:2101651-50-5
RCG65 :
Riociguat RC 5 ;

1-(3-Hydroxyphenyl)-2-(methylamino)ethanone ;
CAS:52093-42-2
PNP03B :
Phenylephrine EP Impurity C ; Phenylephrine USP RC C ; Phenylephrone ;

1-(3-Hydroxyphenyl)-2-(methylamino)ethanone HCl ;
CAS:94240-17-2
PNP03H :
Phenylephrine EP Impurity C (HCl) ; Phenylephrine USP RC C (HCl) ; Phenylephrone HCl ;

1-(3-Hydroxypropyl)-3,7-dimethyl-3,7-dihydro-1H-purine-2,6-dione ;
CAS:59413-14-8
PTX04 :
Pentoxifylline EP Impurity D ;

1-(3-Hydroxypropyl)-5-(2-(2-(2-(2,2,2-trifluoroethoxy)phenoxy)ethylamino) propyl)indoline-7-carboxamide ;
CAS:160970-64-9
SLD60 :
Silodosin Racemate ;

1-(3-Hydroxypropyl)-5-(2-(2-(2-methoxyphenoxy)ethylamino)propyl)indoline-7-carboxamide ;
SLD67 :
Silodosin Methoxy Analog ;

1-(3-Hydroxypropyl)-5-[(2S)-({2-[2-[2-(2,2,2-trifluoroethoxy)phenoxy] ethyl} amino)propyl]indoline-7-carboxamide ;
CAS:2182279-45-2
SLD50 :
Silodosin (S)-Isomer ; Silodosin S-Enantiomer (USP) ;

1-(3-Methoxyphenyl)ethanol ;
CAS:23308-82-9
RVS07 :
Rivastigmine EP Impurity G ;

1-(3-Methoxyphenyl)ethanone ;
CAS:586-37-8
RVS08 :
Rivastigmine EP Impurity H ;

1-(3-Methyl-1-phenyl-1H-pyrazol-5-yl)piperazine ;
CAS:401566-79-8
TGT61 :
Teneligliptin Impurity A ;

1-(4-(((2R,4S)-2-((1H-1,2,4-Triazol-1-yl)methyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)-4-(4-nitrophenyl)piperazine ;
CAS:1437468-92-2
ICZ46 :
Itraconazole Nitrophenyl Impurity ;

1-(4-(((3R,5R)-5-((1H-1,2,4-Triazol-1-yl)methyl)-5-(2,4-difluorophenyl)-tetrahydrofuran-3-yl)methoxy)phenyl)-4-(4-(1-((2S,3S)-2-hydroxypentan-3-yl)-5-oxo-1H-1,2,4-triazol-4(5H)-yl)phenyl)piperazin-2-one ;
PSC52 :
Posaconazole 2-Oxo ;

1-(4-((1,4,8,11-Tetraazacyclotetradecan-1-yl)methyl)benzyl)-1,4,8,11-tetraazacyclotetradecane 1-oxide ;
PXF50 :
Plerixafor N-Oxide ;

1-(4-((1H-1,2,4-Triazol-1-yl)methyl)phenyl)hydrazine ;
CAS:144035-22-3
RZT61B :
Rizatriptan Impurity 1 (Base) ;

1-(4-((1H-1,2,4-Triazol-1-yl)methyl)phenyl)hydrazine dihydrochloride ;
CAS:212248-62-9
RZT61H :
Rizatriptan Impurity 1 (2HCl) ;

1-(4-((1H-1,2,4-Triazol-1-yl)methyl)phenyl)hydrazine monohydrochloride ;
CAS:154748-67-1
RZT61X :
Rizatriptan Impurity 1 (HCl) ;

1-(4-((2S,3S,4S,5S)-4,5-Dihydroxy-6-(hydroxymethyl)-3-((3R,4S,6S)-3,4,5-trihydroxy-6-methyl-tetrahydro-2H-pyran-2-yloxy)-tetrahydro-2H-pyran-2-yloxy)-2,6-dihydroxyphenyl)-3-(4-hydroxyphenyl)propan-1-one ;
CAS:18916-17-1
NRN60 :
Naringin Dihydrochalcone ;

1-(4-((3S,5S)-5-(Thiazolidine-3-carbonyl)pyrrolidin-3-yl)piperazin-1-yl)butane-1,3-dione ;
TGT64 :
Teneligliptin Impurity D ;

1-(4-(1-(2,6-Difluorobenzyl)-3-(6-methoxypyridazin-3-yl)-5-((methyl(nitroso)amino)methyl)-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidin-6-yl)phenyl)-3-methoxyurea ;
RLG52 :
Relugolix N-Desmethyl N-Nitroso ;

1-(4-(1-(2,6-Difluorobenzyl)-5-((dimethylamino)methyl)-3-(6-methoxypyridazin-3-yl)-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidin-6-yl)phenyl)-3-ethoxyurea ;
RLG51 :
Relugolix Ethoxy Analog ;

1-(4-(1-(2,6-Difluorobenzyl)-5-((dimethylamino)methyl)-3-(6-methoxypyridazin-3-yl)-2,4-dioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidin-6-yl)phenyl)-3-methoxyurea ;
CAS:737789-87-6
RLG00 :
Relugolix ;

1-(4-(2,4-Dimethylphenylthio)phenyl)piperazine ;
CAS:1815608-51-5
VXT21B :
Vortioxetine USP RC A (Base) ; para-Vortioxetine ;

1-(4-(2,4-Dimethylphenylthio)phenyl)piperazine hydrochloride ;
CAS:3077786-27-4
VXT21H :
Vortioxetine USP RC A (HCl) ; para-Vortioxetine (HCl) ;

1-(4-(2-(2,4-Dimethylphenylthio)phenyl)piperazin-1-yl)ethanone ;
CAS:1801352-86-2
VXT41 :
Vortioxetine N-Acetyl Analog ;

1-(4-(2-(5-Chloro-2-methoxybenzamido)ethyl)phenylsulfonyl)-3-((1R,2R)-2-hydroxycyclohexyl)urea ;
CAS:586414-93-9
GLB72 :
Glyburide 2-Hydroxy trans-Isomer ;

1-(4-(2-(5-Chloro-2-methoxybenzamido)ethyl)phenylsulfonyl)-3-((1r,4r)-4-hydroxycyclohexyl)urea ;
CAS:23155-00-2
GLB74 :
Glyburide 4-Hydroxy trans-Isomer ; Glibenclamide 4-Hydroxy trans-Isomer ;

1-(4-(2-(5-Chloro-2-methoxybenzamido)ethyl)phenylsulfonyl)-3-((1S,3R)-3-hydroxycyclohexyl)urea ;
CAS:23074-02-4
GLB63 :
Glyburide 3-Hydroxy cis-Isomer ;

1-(4-(2-(5-Chloro-2-methoxybenzamido)ethyl)phenylsulfonyl)-3-((1S,3S)-3-hydroxycyclohexyl)urea ;
CAS:586414-84-8
GLB73 :
Glyburide 3-Hydroxy trans-Isomer ;

1-(4-(2-(5-Chloro-2-methoxybenzamido)ethyl)phenylsulfonyl)-3-((1s,4s)-4-hydroxycyclohexyl)urea ;
CAS:132054-81-0
GLB64 :
Glyburide 4-Hydroxy cis-Isomer ;

1-(4-(2-(Methylcarbamoyl)pyridin-4-yloxy)phenyl)urea ;
CAS:1129683-88-0
SRF43 :
Sorafenib Urea Impurity ;

1-(4-(2-Hydroxy-4-methoxybenzoyl)piperidin-1-yl)ethanone ;
CAS:64671-18-7
RSP77 :
Risperidone RC 7 ;

1-(4-(3-(4-(4-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)propoxy)-3-methoxyphenyl)ethanone ;
ILP53 :
Iloperidone 6-Desfluoro 4-Fluoro ;

1-(4-(3-(4-(6-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)benzo[d]isoxazol-3-yl)piperidin-1-yl)propoxy)-3-methoxyphenyl)ethanone ;
CAS:1375651-23-2
ILP55 :
Iloperidone Dimer Impurity ;

1-(4-(3-(4-(6-Fluorobenzo[d]isoxazol-3-yl)-5,6-dihydropyridin-1(2H)-yl)propoxy)-3-methoxyphenyl)ethanone ;
ILP52 :
Iloperidone 3,4-Dehydropiperidine ;

1-(4-(3-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)propoxy)-3-methoxyphenyl)ethanol N-oxide ;
CAS:1797883-91-0
ILP57 :
Iloperidone Hydroxy N-Oxide ;

1-(4-(3-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)propoxy)-3-methoxyphenyl)propan-1-one ;
CAS:133455-04-6
ILP51 :
Iloperidone 1-Desacetyl 1-Propionyl ;

1-(4-(3-(4-(6-Hydroxybenzo[d]isoxazol-3-yl)piperidin-1-yl)propoxy)-3-methoxyphenyl)ethanone ;
ILP54 :
Iloperidone 6-Desfluoro 6-Hydroxy ;

1-(4-(4-(((2S,4R)-2-(Bromomethyl)-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl)methoxy)phenyl)piperazin-1-yl)ethanone ;
CAS:142128-65-2
KCZ62 :
Ketoconazole RC 2 ; Ketoconazole Bromomethyl Analog (USP) ;

1-(4-(4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenylamino)quinazolin-6-yl)-3-(1-hydroxy-2-methylpropan-2-yl)thiourea ;
CAS:1429755-58-7
TCB62 :
Tucatinib RC 2 ; Tucatinib Quinazoline ;

1-(4-(4-([1,2,4]Triazolo[1,5-a]pyridin-7-yloxy)-3-methylphenylamino)quinazolin-6-yl)-4,4-dimethylimidazolidine-2-thione ;
TCB68 :
Tucatinib RC 8 ;

1-(4-(4-Fluorobenzoyl)piperidin-1-yl)ethanone ;
CAS:25519-77-1
RSP72B :
Risperidone RC 2 ;

1-(4-(4-Hydroxyphenyl)piperazin-1-yl)ethanone ;
CAS:67914-60-7
KCZ64 :
Ketoconazole RC 4 ; Acetylpiperazinylphenol (USP) ;

1-(4-(5-Fluoro-2-hydroxybenzoyl)piperidin-1-yl)ethanone ;
CAS:84162-84-5
RSP87 :
Risperidone RC 17 ;

1-(4-(Benzyloxy)-2-hydroxy-3-propylphenyl)ethanone ;
CAS:76833-51-7
TLK65 :
Tipelukast RC 5 ;

1-(4-(Hydroxymethyl)-3-vinylphenyl)ethanone ;
CAS:1418144-63-4
SNM67 :
Siponimod RC 7 ;

1-(4-(Methoxymethoxy)phenyl)-4-(4-nitrophenyl)piperazine ;
CAS:1246819-65-7
PSC69 :
Posaconazole Methoxy Nitro Impurity ;

1-(4-(o-Toluidino)pyridin-3-ylsulfonyl)-3-isopropylurea ;
CAS:106944-62-1
TSM66 :
Torsemide RC 6 ; o-Torsemide ;

1-(4-(p-Toluidino)pyridin-3-ylsulfonyl)-3-isopropylurea ;
CAS:106944-63-2
TSM71 :
Torsemide RC 11 ; p-Torsemide ;

1-(4-(Trifluoromethoxy)phenyl)thiourea ;
CAS:142229-74-1
RLZ71 :
Riluzole RC 1 ;

1-(4-Acetylphenyl)-2-methylpropan-1-one ;
CAS:103931-20-0
IBP73 :
Ibuprofen Impurity 13 ;

1-(4-Amino-1H-imidazo[4,5-c]quinolin-1-yl)-2-methylpropan-2-ol ;
CAS:112668-45-8
IQM61 :
Imiquimod Impurity 1 ;

1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl) carbonxyl] piperazine hydrochloride ;
CAS:63590-64-7
PRZ31H :
Prazosin Tetrahydro Impurity ;

1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl) carbonxyl] piperazine hydrochloride dihydrate ;
CAS:70024-40-7
TRZ00H :
Terazosin HCl Dihydrate ;

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-(5-hydroxypentanoyl)piperazine ;
CAS:109678-71-9
TRZ06B :
Terazosin EP Impurity F (Base) ;

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-(5-hydroxypentanoyl)piperazine HCl ;
TRZ06H :
Terazosin EP Impurity F (HCl) ;

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-(furan-2-ylcarbonyl) piperazine hydrochloride ;
CAS:19237-84-4
PRZ00H :
Prazosin (HCl) ; Terazosin EP Impurity K (HCl) ;

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-(furan-2-ylcarbonyl)piperazine ;
PRZ00B :
Prazosin (Base) ; Terazosin EP Impurity K ;

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-(furan-2-ylcarbonyl)piperazine HCl ;
CAS:19237-84-4
TRZ11H :
Terazosin EP Impurity K (HCl) ; Prazosin HCl ;

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-[(2RS)-2-hydroxypentanoyl] piperazine ;
CAS:152551-75-2
TRZ10B :
Terazosin EP Impurity J ;

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS,5S)-5-methyltetrahydro furan-2-yl]carbonyl]piperazine ;
CAS:1177261-85-6
TRZ09B :
Terazosin EP Impurity I ;

1-(4-Amino-6-hydroxy-7-methoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine ;
CAS:105356-89-6
TRZ07B :
Terazosin EP Impurity G ; 6-O-Desmethyl Terazosin ;

1-(4-Amino-7-hydroxy-6-methoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine ;
CAS:105356-90-9
TRZ08B :
Terazosin EP Impurity H ; 7-O-Desmethyl Terazosin ;

1-(4-Amino-7-hydroxy-6-methoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine HCl ;
TRZ08H :
Terazosin EP Impurity H (HCl) ; 7-O-Desmethyl Terazosin HCl ;

1-(4-Benzyloxy-3-hydroxymethyl-phenyl)-2-(tert-butylamino)ethanol ;
CAS:56796-66-8
SAB09B :
Salbutamol EP Impurity I ; 4-Benzyl Albuterol ; O-Benzyl Albuterol (USP) ;

1-(4-Bromophenyl)-4-(4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl)butan-1-one ;
HPR52B :
Haloperidol Impurity 2 ;

1-(4-Chloro-3-(trifluoromethyl)phenyl)-3-(2-fluoro-4-(2-(methylcarbamoyl)pyridin-4-yloxy)phenyl)urea monohydrate ;
CAS:1019206-88-2
RGR00H :
Regorafenib (Monohydrate) ;

1-(4-Chloro-3-(trifluoromethyl)phenyl)-3-(4-hydroxyphenyl)urea ;
CAS:1129683-83-5
SRF66 :
Sorafenib RC 6 ;

1-(4-Chlorobenzoyl)-5-hydroxy-2-methyl-1H-indole-3-acetic acid ;
CAS:2504-32-7
IDM57 :
Indomethacin O-Desmethyl Impurity ;

1-(4-Chlorobenzoyl)-5-methoxy-2-methyl-1-[2-(4-morpholinyl)-2-oxoethyl]-1H-indole ;
CAS:2854-32-2
IDM56 :
Indomethacin Morpholinylamide Impurity ;

1-(4-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic acid ;
CAS:53-86-1
IDM00 :
Indomethacin ;

1-(4-Chlorobenzoyl)-5-methoxy-2-methyl-1H-Indole-3-acetic acid 2-(4-chlorobenzoyl)-2-(4-methoxyphenyl)hydrazide ;
CAS:402849-25-6
IDM10 :
Indomethacin EP Impurity J ; Indomethacin Diamide ;

1-(4-Chlorobenzoyl)-5-methoxy-2-methyl-1H-Indole-3-acetic acid ethyl ester ;
CAS:16401-99-3
IDM09 :
Indomethacin EP Impurity I ; Indomethacin Ethyl Ester ;

1-(4-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic acid methyl ester ;
CAS:1601-18-9
IDM08 :
Indomethacin EP Impurity H ; Indomethacin Methyl Ester ;

1-(4-Chlorophenyl)-2-((3-chloropropyl)(methyl)amino)ethanone ;
LFP61B :
Lofepramine RC 1 ;

1-(4-Chlorophenyl)-2-((3-hydroxypropyl)(methyl)amino)ethanone ;
LFP62B :
Lofepramine RC 2 ;

1-(4-Chlorophenyl)-2-[[3-(10,11-dihydro-5H-dibenz[b,f]azepin-5-yl)propyl]methylamino]ethanone ;
CAS:23047-25-8
LFP00B :
Lofepramine ;

1-(4-Chlorophenyl)-2-[[3-(10,11-dihydro-5H-dibenz[b,f]azepin-5-yl)propyl]methylamino]ethanone hydrochloride ;
CAS:26786-32-3
LFP00H :
Lofepramine HCl ;

1-(4-Chlorophenyl)-3-cyanoguanidine ;
CAS:1482-62-8
PGN05B :
Proguanil EP Impurity E ; Proguanil USP RC E ;

1-(4-Chlorophenyl)-4-(3-chloropropyl)piperazine ;
CAS:6323-14-4
NFZ54B :
Nefazodone 4-Chlorophenyl Impurity ;

1-(4-Chlorophenyl)-5-(1-methylethyl)biguanide hydrochloride ;
CAS:637-32-1
PGN00H :
Proguanil Hydrochloride ;

1-(4-Chlorophenyl)ethanone ;
CAS:99-91-2
LFP63 :
Lofepramine RC 3 ;

1-(4-Ethoxy-3-(1-methyl-3-propyl-7-thioxo-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl)-2-(4-(2-hydroxyethyl)piperazin-1-yl)ethanone ;
CAS:1159977-47-5
SDFC7 :
Sildenafil RC 37 ; Hydroxythio Acetildenafil ;

1-(4-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide ;
RCG66B :
Riociguat RC 6 (Base) ;

1-(4-Fluorobenzyl)-1H-pyrazolo[3,4-b]pyridine-3-carboximidamide hydrochloride ;
RCG66H :
Riociguat RC 6 (HCl) ;

1-(4-Fluorobenzyl)-3-(4-isobutoxybenzyl)-1-(1-methylpiperidin-4-yl)urea ;
CAS:706779-91-1
PVN00B :
Pimavanserin (Base) ;

1-(4-Fluorobenzyl)-3-(4-isobutoxybenzyl)-1-(piperidin-4-yl)urea ;
CAS:639863-77-7
PVN67 :
Pimavanserin RC 7 ; N-Desmethyl Pimavanserin ;

1-(4-Fluorobenzyl)-3-(4-isobutoxybenzyl)urea ;
CAS:1388858-78-3
PVN68 :
Pimavanserin RC 8 ;

1-(4-Fluorophenyl)-1,3,8-triazaspiro[4.5]decan-4-one ;
CAS:58012-16-1
FLS61 :
Fluspirilene RC 1 ;

1-(4-Fluorophenyl)-4-(4-hydroxy-4-phenylpiperidin-1-yl)butan-1-one ;
CAS:3109-12-04 00:00:00
HPR01B :
Haloperidol EP Impurity A ; Dechloro Haloperidol ;

1-(4-Fluorophenyl)-4-[(6bR,10aS)-2,3,6b,9,10,10a-hexahydro-1H-pyrido[3,4:4,5]pyrrolo[1,2,3-de]quinoxalin-8(7H)-yl]-1-butanone ;
CAS:313368-82-0
LMR50 :
Lumateperone N-Desmethyl ;

1-(4-Fluorophenyl)-4-[(6bR,10aS)-3-methyl-2,3,6b,9,10,10a-hexahydro-11H-pyrido[3`,4`:4,5]pyrrolo[1,2,3-de]quinoxalin-8(7H)-yl]butan-1-one ;
CAS:313368-91-1
LMR00 :
Lumateperone ;

1-(4-Fluorophenyl)-4-oxocyclohexanecarbonitrile ;
CAS:56326-98-8
LVC08 :
Levocabastine EP Impurity H ;

1-(4-Fluorophenyl)-N-[(4-fluorophenyl)methyl]methanimine ;
CAS:428819-12-9
PVN69 :
Pimavanserin RC 9 ;

1-(4-Fluorophenyl)ethanone ;
CAS:403-42-9
HPD12 :
Haloperidol Decanoate EP Impurity L ; 4'-Fluoroacetophenone ;

1-(4-Fluorophenyl)pyridin-2(1H)-one ;
CAS:60532-42-5
PFD61 :
Pirfenidone RC 1 ;

1-(4-Hydroxy-2-(2-hydroxy-3-(propylamino)propoxy)phenyl)-3-phenylpropan-1-one ;
CAS:86384-09-0
PRP51B :
Propafenone 4-Hydroxy Impurity (Base) ;

1-(4-Hydroxy-2-(2-hydroxy-3-(propylamino)propoxy)phenyl)-3-phenylpropan-1-one hydrochloride ;
CAS:86383-31-5
PRP51H :
Propafenone 4-Hydroxy Impurity (HCl) ;

1-(4-Hydroxy-2-(3-phenylpropanoyl)phenoxy)-3-(propylamino)propan-2-yl hydrogen sulfate ;
CAS:1346598-57-9
PRP62 :
Propafenone RC 2 ;

1-(4-Hydroxy-3-hydroxymethylphenyl)-2-(tert-butylbenzylamino)ethanol ;
CAS:24085-03-8
SAB05B :
Salbutamol EP Impurity E ; N-Benzyl Salbutamol ; N-Benzyl Albuterol (USP) ; Levalbuterol Impurity E (?) ;

1-(4-Hydroxy-3-hydroxymethylphenyl)-2-(tert-butylbenzylamino)ethanone ;
CAS:64092-10-0
SAB07B :
Salbutamol EP Impurity G ; N-Benzyl Salbutamone ;

1-(4-Hydroxy-3-hydroxymethylphenyl)-2-(tert-butylbenzylamino)ethanone HCl ;
CAS:24085-08-3
SAB07H :
Salbutamol EP Impurity G (HCl) ; N-Benzyl Salbutamone HCl ;

1-(4-Hydroxy-3-methylphenyl)-2-[[6-(4-phenylbutoxy)hexyl]amino]ethanol ;
CAS:1391054-40-2
SAL06B :
Salmeterol EP Impurity F (Base) ; Salmeterol Deoxy Impurity (USP) ;

1-(4-Hydroxy-3-methylphenyl)-2-[[6-(4-phenylbutoxy)hexyl]amino]ethanol formate ;
SAL06F :
Salmeterol EP Impurity F (Formate) ; Salmeterol Deoxy Impurity (USP) ;

1-(4-Hydroxy-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine ;
CAS:1177261-73-2
TRZ02B :
Terazosin EP Impurity B ; Terazosin USP RC B ; Terazosin 4-Hydroxy Analog ;

1-(4-Hydroxybenzyl)-3-(4-isobutoxybenzyl)-1-(1-methylpiperidin-4-yl)urea ;
PVN70 :
Pimavanserin RC 10 ;

1-(4-Hydroxyphenyl)-2-(1-phenoxypropan-2-ylamino)propan-1-one ;
CAS:60640-80-4
ISX02B :
Isoxsuprine EP Impurity B (Base) ;

1-(4-Hydroxyphenyl)-2-(1-phenoxypropan-2-ylamino)propan-1-one HCl ;
CAS:35205-51-7
ISX02H :
Isoxsuprine EP Impurity B (HCl) ;

1-(4-Hydroxyphenyl)-2-methoxyethanone ;
CAS:32136-81-5
MTP62 :
Metoprolol RC 2 ;

1-(4-Hydroxyphenyl)-4-(3-methoxyphenyl)-2-phenylbutan-1-one ;
NXD62 :
Nafoxidine RC 2 ;

1-(4-Hydroxyphenyl)-5-methylpyridin-2(1H)-one ;
CAS:851518-71-3
PFD52 :
Pirfenidone N-(4-Hydroxyphenyl) ;

1-(4-Hydroxyphenyl)ethanone ;
CAS:99-93-4
PCM05 :
Paracetamol EP Impurity E ;

1-(4-Hydroxyphenyl)ethanone oxime ;
CAS:34523-34-7
PCM07 :
Paracetamol EP Impurity G ;

1-(4-Hydroxyphenyl)pyridin-2(1H)-one ;
CAS:859538-51-5
PFD56 :
Pirfenidone Desmethyl N-(4-Hydroxyphenyl) ;

1-(4-Hydroxyphenyl)pyridin-2(1H)-one ;
CAS:2251047-36-4
PFD54 :
Pirfenidone 5-Methylpyridin-2-one ;

1-(4-Methoxy-2-nitrophenoxy)benzene ;
CAS:84594-95-6
ITM65 :
Iguratimod Impurity 5 ;

1-(4-Methoxyphenyl)-4-(4-aminophenyl)piperazine ;
CAS:74852-62-3
ICZ44 :
Itraconazole Methoxy Amino Impurity ;

1-(4-Methoxyphenyl)-4-(4-hydrazinylcarbonylaminophenyl)piperazine ;
ICZ43 :
Itraconazole Methoxy Hydrazinyl Impurity ;

1-(4-Methoxyphenyl)-4-(4-nitrophenyl)piperazine ;
ICZ34 :
Itraconazole Methoxy Nitro Impurity ;

1-(4-Methoxyphenyl)-4-(4-phenoxycarbonylaminophenyl)piperazine ;
ICZ48 :
Itraconazole Methoxy Phenoxy Impurity ;

1-(4-Methylbenzyl)-1,4,8,11-tetraazacyclotetradecane ;
CAS:351472-73-6
PXF65 :
Plerixafor Impurity 5 ;

1-(5,6-Dihydronaphthalen-1-yl)ethanamine ;
CAS:1824506-44-6
LBN61 :
Levobunolol RC 1 ;

1-(5-(2-Fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)-N-((5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl)methyl)-N-methylmethanamine ;
VPZ56B :
Vonoprazan Dimer Impurity ;

1-(5-(2-Fluorophenyl)-1H-pyrrol-3-yl)-N-((5-(2-fluorophenyl)-1H-pyrrol-3-yl)methyl)-N-methylmethanamine ;
CAS:3058423-29-0
VPZ85B :
Vonoprazan RC 25 ;

1-(5-(Benzyloxy)-2-(2-hydroxy-3-(propylamino)propoxy)phenyl)-3-phenylpropan-1-one ;
CAS:200434-70-4
PRP52 :
Propafenone 5-Benzyloxy ;

1-(5-Benzoylthiophen-2-yl)ethanone ;
CAS:5912-44-7
TPF02 :
Tiaprofenic Acid EP Impurity B ;

1-(5-Chlorobenzo[c][1,2,5]thiadiazol-4-yl)-3-(2,2-diethoxyethyl)guanidine ;
CAS:1391053-77-2
TZN61 :
Tizanidine RC 1 ;

1-(5-Hydroxy-2-(2-hydroxy-3-(propylamino)propoxy)phenyl)-3-phenylpropan-1-one ;
CAS:86384-10-3
PRP59B :
Propafenone 5-Hydroxy (Base) ;

1-(5-Hydroxy-2-(2-hydroxy-3-(propylamino)propoxy)phenyl)-3-phenylpropan-1-one hydrochloride ;
CAS:86383-32-6
PRP59H :
Propafenone 5-Hydroxy (HCl) ;

1-(5-Methoxy-1H-benzo[d]imidazol-2-yl)-3,5-dimethyl-4-oxo-1,4-dihydropyridine-2-carboxylic acid ;
CAS:1227380-90-6
OMP40A :
Omeprazole Pyridone Acid ; Esomeprazole Dihydro Pyridine Impurity ; Esomeprazole Impurity H ;

1-(5-O-Acetyl-+¦-D-ribofuranosyl)-1H-1,2,4-triazole-3-carboxamide ;
CAS:58151-87-4
RBV06 :
Ribavirin EP Impurity F ; 5'-O-Acetyl Ribavirin ;

1-(5-O-Benzoyl-+¦-D-ribofuranosyl)-1H-1,2,4-triazole-3-carboxamide ;
CAS:58151-90-9
RBV61 :
Ribavirin RC 1 ;

1-(5-O-Benzoyl-2,3-dideoxy-+ƒ-D-glycero-pent-2-enofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione ;
CAS:122567-97-9
STV09 :
Stavudine EP Impurity I ;

1-(6,7,9,10-Tetrahydro-6,10-methano-8H-pyrazino[2,3-h][3]benzazepin-8-carboxylate) +¦-D-glucopyranuronic acid ;
CAS:535920-98-0
VCT61 :
Varenicline Carbamoyl Glucuronide ;

1-(6,7,9,10-Tetrahydro-6,10-methano-8H-pyrazino[2,3-h][3]benzazepin-8-carboxylate) +¦-D-glucopyranuronic acid methyl ester ;
VCT62 :
Varenicline Carbamoyl Glucuronide Methyl Ester ;

1-(6,7,9,10-Tetrahydro-6,10-methano-8H-pyrazino[2,3-h][3]benzazepin-8-yl)ethanone ;
CAS:1213781-59-9
VCT66 :
Varenicline N-Acetyl Impurity ;

1-(6-((6-Acetyl-8-cyclopentyl-5-methyl-7-oxo-7,8-dihydropyrido[2,3-d]pyrimidin-2-yl)amino)pyridin-3-yl)piperazine 1-oxide ;
CAS:2174002-29-8
PBC59B :
Palbociclib Piperazine N-Oxide (USP) ; Palbociclib N-Oxide ;

1-(6-(Trifluoromethoxy)benzo[d]thiazol-2-yl)urea ;
CAS:1456696-94-8
RLZ74 :
Riluzole RC 4 ;

1-(6-Amino-9-(((2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)-tetrahydrofuran-2-yl)methyl)-9H-purin-2-yl)-N-methyl-1H-pyrazole-4-carboxamide ;
CAS:313348-27-5
RGD00 :
Regadenoson ;

1-(6-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)-tetrahydrofuran-2-yl)-9H-purin-2-yl)-1H-pyrazole-4-carboxylic acid ;
CAS:313348-29-7
RGD53 :
Regadenoson Impurity 3 ; Regadenoson Acid ;

1-(6-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)-tetrahydrofuran-2-yl)-9H-purin-2-yl)-N,N-dimethyl-1H-pyrazole-4-carboxamide ;
CAS:313348-31-1
RGD52 :
Regadenoson Impurity 2 ; N-Methyl Regadenoson ;

1-(6-Amino-9-((2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)-tetrahydrofuran-2-yl)-9H-purin-2-yl)-N-ethyl-1H-pyrazole-4-carboxamide ;
RGD70 :
Regadenoson Impurity 20 ; Regadenoson N-Ethyl Analog ;

1-(6-Amino-9-((2S,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)-tetrahydrofuran-2-yl)-9H-purin-2-yl)-N-methyl-1H-pyrazole-4-carboxamide ;
CAS:2015222-31-6
RGD54 :
Regadenoson Impurity 4 ; 1-epi Regadenoson ;

1-(6-Amino-9H-purin-9-yl)propan-2-ol ;
CAS:14047-26-8
TNF98 :
Tenofovir RC 8 ;

1-(6-Methoxynaphthalen-2-yl)ethanone ;
CAS:3900-45-6
NPX12 :
Naproxen EP Impurity L ; Naproxen USP RC L ;

1-(9H-Fluoren-9-yl)-5-hydroxypentan-1-one ;
LPD53 :
Lomitapide FHP Impurity ;

1-(Aminomethyl)cyclohexaneacetic acid ;
CAS:60142-96-3
GBP00 :
Gabapentin ;

1-(bis(4-Cyanophenyl)methyl)-1H-1,2,4-triazole-4-oxide ;
LTZ50 :
Letrozole N-Oxide ;

1-(Bromomethyl)-3-(trifluoromethoxy)benzene ;
CAS:159689-88-0
PTD55 :
Pretomanid Impurity 5 ;

1-(Bromomethyl)-4-(trifluoromethoxy)benzene ;
CAS:50824-05-0
PTD54 :
Pretomanid Impurity 4 ;

1-(Chloroacetyl)-2-pyrrolidinecarbonitrile ;
CAS:274901-37-0
VDG59 :
Vildagliptin Chloroacetyl Nitrile Racemate ;

1-(Chloromethyl)-1-methyl-4-(2-methyl-10H-thieno[2,3-b]-[1,5]benzodiazepin-4-yl)piperazin-1-ium chloride ;
CAS:719300-59-1
OLZ03 :
Olanzapine EP Impurity C ; Olanzapine BP Impurity C ; Olanzapine N-Chloromethyl Chloride ;

1-(Chloromethyl)-3-phenoxybenzene ;
CAS:53874-66-1
PMR05 :
Permethrin EP Impurity E ;

1-(Chloromethyl)naphthalene ;
CAS:86-52-2
TBN82 :
Terbinafine RC 22 ;

1-(Chroman-2-yl)-2-((2-(6-fluorochroman-2-yl)-2-hydroxyethyl)amino)ethanol ;
CAS:129101-34-4
NBV25B :
Nebivolol USP RC E (Base) ; Nebivolol EP Impurity A ; Monodesfluoro Nebivolol ;

1-(Chroman-2-yl)-2-((2-(6-fluorochroman-2-yl)-2-hydroxyethyl)amino)ethanol hydrochloride ;
NBV25H :
Nebivolol USP RC E (HCl) ; Nebivolol EP Impurity A (HCl) ; Monodesfluoro Nebivolol HCl ;

1-(Chroman-2-yl)-2-((2-(chroman-2-yl)-2-hydroxyethyl)amino)ethanol ;
CAS:129101-33-3
NBV75 :
Nebivolol Didesfluoro Impurity ;

1-(Cyano-(4-methoxyphenyl)methyl)cyclohexanol ;
CAS:93413-76-4
VLF36 :
Venlafaxine Cyano Impurity ; Venlafaxine Hydroxy Nitrile Impurity ;

1-(Cyclopropylcarbonyl) piperazine ;
CAS:59878-57-8
OPB73B :
Olaparib RC 13 (Base) ;

1-(Cyclopropylcarbonyl) piperazine hydrochloride ;
CAS:1021298-67-8
OPB73H :
Olaparib RC 13 (HCl) ;

1-(Di(aziridin-1-yl)phosphorothioyl)aziridine ;
CAS:52-24-4
THT00 :
Thiotepa ;

1-(Dicyclopropylmethyl)-3-(2-hydroxyethyl)urea ;
CAS:54187-44-9
RMD01 :
Rilmenidine EP Impurity A ;

1-(Dimethylamino)-2-(pyridin-4-yl)pent-1-en-3-one ;
CAS:78504-62-8
MLR55 :
Milrinone RC 5 ;

1-(Diphenylmethyl)-4-[(3-methylphenyl)methyl]piperazine ;
CAS:16896-82-5
MCL05 :
Meclizine EP Impurity E ; Meclozine EP Impurity E ; Deschloro Meclozine ;

1-(Ethoxycarbonyl)piperidine-4-carboxylic acid ;
CAS:118133-15-6
RSP96 :
Risperidone RC 26 ;

1-(Ethylamino)-3-(naphthalen-1-yloxy)propan-2-ol ;
CAS:2111-24-2
PPN62 :
Propranolol RC 2 ;

1-(Furan-2-ylcarbonyl)piperazine ;
CAS:40172-95-0
TRZ12B :
Terazosin EP Impurity L ; Prazosin EP Impurity D ; Prazosin USP RC D ;

1-(Furan-2-ylcarbonyl)piperazine ;
CAS:40172-95-0
PRZ04 :
Prazosin EP Impurity D ; Prazosin USP RC D ; Terazosin EP Impurity L ;

1-(Hexahydrocyclopenta[c]pyrrol-2(1H)-yl)-3-[(2-methylphenyl)sulfonyl]urea ;
CAS:1076198-18-9
GCZ06 :
Gliclazide EP Impurity F ; Gliclazide BP Impurity F ; Gliclazide ortho-Analog ;

1-(Hexahydrocyclopenta[c]pyrrol-2(1H)-yl)-3-[(4-methylphenyl)sulfonyl]urea ;
CAS:21187-98-4
GCZ00 :
Gliclazide ;

1-(Methylthio)-3-(2-((5-nitrofuran-2-yl)methylene)hydrazinyl)propan-2-ol ;
NFT63 :
Nifuratel Impurity C ; Descarbonyl Nifuratel ;

1-(N,N-Dimethylamino)-4,4-diethoxybutane ;
CAS:1116-77-4
ZMT28B :
Zolmitriptan USP RC H ;

1-(Naphthalen-1-yloxy)-3-(piperazin-1-yl)propan-2-ol ;
CAS:75375-26-7
NFP63 :
Naftopidil RC 3 ;

1-(Phenylmethyl)-1H-1,2,3-triazole-4-carboxamide ;
CAS:80819-65-4
RFN50 :
Rufinamide Didesfluoro Impurity ;

1-(Phthalazin-1-yl)-2-(propan-2-ylidene)hydrazine ;
CAS:56173-18-3
HDL56 :
Hydralazine Acetone Hydrazone ;

1-(Piperidin-4-yl)-1,3-dihydro-2H-benzimidazol-2-one ;
CAS:20662-53-7
PZD01 :
Pimozide EP Impurity A ; Pimozide Amine (USP) ; Benperidol EP Impurity A ;

1-(Piperidin-4-yl)propan-1-one ;
CAS:86542-94-1
PPD76 :
Paliperidone RC 16 ;

1-(Pyridin-3-yl)ethanone ; 3-Acetylpyridine ;
CAS:350-03-8
IMT08 :
Imatinib EP Impurity H ;

1-(Pyridin-4-yl)propan-2-one ;
CAS:6304-16-1
MLR58 :
Milrinone RC 8 ;

1-+¦-D-Ribofuranosyl-1H-1,2,4-triazole-3-carboxamide ;
CAS:57198-02-4
RBV02 :
Ribavirin EP Impurity B ; +¦-Ribavirin ;

1-+¦-D-Ribofuranosyl-1H-1,2,4-triazole-3-carboxamide ;
CAS:36791-04-5
RBV00 :
Ribavirin ;

1-+¦-D-Ribofuranosyl-1H-1,2,4-triazole-3-carboxylic acid ;
CAS:39925-19-4
RBV01 :
Ribavirin EP Impurity A ; Ribavirin USP RC A ; Ribavirin Carboxylic Acid ;

1-+¦-D-Ribofuranosyl-1H-1,2,4-triazole-5-carboxamide ;
CAS:39030-43-8
RBV07 :
Ribavirin EP Impurity G ; Iso Ribavirin ;

1-[(1-Methylethyl)amino]-3-[2-(2-propen-1-yloxy)phenoxy]-2-propanol hydrochloride ;
CAS:6452-73-9
OPN00H :
Oxprenolol HCl ;

1-[(1-Methylethyl)nitrosoamino]-3-(1-naphthalenyloxy)-2-propanol ;
CAS:84418-35-9
PPN50 :
Propranolol N-Nitroso Impurity ;

1-[(2+¦,3+¦,5+¦,16+¦,17+¦)-17-(Acetyloxy)-3-hydroxy-2-(4-morpholinyl)androstan-16-yl]-1-(2-propenyl)pyrrolidinium bromide N-oxide ;
RCR50 :
Rocuronium Bromide N-Oxide ;

1-[(2,6-Difluorophenyl)methyl]-1H-1,2,3-triazole-4-carboxamide ;
CAS:106308-44-5
RFN00 :
Rufinamide ;

1-[(2-Chlorophenyl)(phenyl)methyl]-4-(3-methylbenzyl) piperazine ;
CAS:713071-37-5
MCL33B :
Meclizine ortho-Chloro Isomer (Base) ;

1-[(2-Chlorophenyl)(phenyl)methyl]-4-(3-methylbenzyl) piperazine dihydrochloride ;
CAS:115291-60-6
MCL33H :
Meclizine ortho-Chloro Isomer (2HCl) ;

1-[(2-Fluorophenyl)methyl]-1H-1,2,3-triazole-4-carboxamide ;
CAS:106308-41-2
RFN21 :
Rufinamide USP RC A ; Desfluoro Rufinamide ;

1-[(2GÇ¦-Carboxy biphenyl-4-yl)methyl]-4-methyl-2-propyl-1H-benzimidazol-6-carboxylic acid ;
CAS:884330-12-5
TST05 :
Telmisartan EP Impurity E ; Telmisartan Diacid (USP) ;

1-[(2R)-5-Oxo-2,5-dihydrofuran-2-yl]-5-methylpyrimidine2,4(1H,3H)-dione ;
STV04 :
Stavudine EP Impurity D ; Zidovudine BP Impurity D ; Stavudine Lactone Impurity ;

1-[(2R)-Hydroxy-3-[(1-methylethyl)amino]propoxy]-4-naphthalenol hydrobrmide ;
PPN65H :
Propranolol 4-Hydroxy R-Isomer (HBr) ;

1-[(2R,4S,5S)-4-Azido-5-(hydroxymethyl)tetrahydrofuran-2-yl]-3-[(2S,3S,5R)-2-(hydroxymethyl)-5-(5-methyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl]-5-methylpyrimidine-2,4(1H,3H)-dione ;
CAS:148665-49-0
ZDV07 :
Zidovudine EP Impurity G ;

1-[(2R,5S)-2-(Hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidine-2,4(1H,3H)-dione ;
CAS:145986-07-8
LMV10 :
Lamivudine EP Impurity J ; Lamivudine Dione Impurity ;

1-[(2R,5S)-5-(Hydroxymethyl)-2,5-dihydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione ;
CAS:3056-17-5
STV00 :
Stavudine ; Zidovudine EP Impurity A ;

1-[(2R,5S)-5-(Hydroxymethyl)-2,5-dihydrofuran-2-yl)-5-methylpyrimidine-2,4(1H,3H)-dione ;
CAS:3056-17-5
ZDV01 :
Zidovudine EP Impurity A ; Stavudine ;

1-[(2RS)-2-(2,4-Dichlorophenyl)-2-[(2,5-dichlorothiophen-3-yl)methoxy]ethyl]-1H-imidazole ;
CAS:119386-75-3
TCZ02B :
Tioconazole EP Impurity B (Base) ; Tioconazole USP RC B ;

1-[(2RS)-2-(2,4-Dichlorophenyl)-2-[(2,5-dichlorothiophen-3-yl)methoxy]ethyl]-1H-imidazole HCl ;
CAS:61675-62-5
TCZ02H :
Tioconazole EP Impurity B (HCl) ; Tioconazole USP RC B ;

1-[(2RS)-2-(2,4-Dichlorophenyl)-2-[(thiophen-3-yl)methoxy]ethyl]-1H-imidazole ;
CAS:119386-74-2
TCZ01B :
Tioconazole EP Impurity A (Base) ; Tioconazole USP RC A ;

1-[(2RS)-2-(2,4-Dichlorophenyl)-2-[(thiophen-3-yl)methoxy]ethyl]-1H-imidazole HCl ;
CAS:61709-33-9
TCZ01H :
Tioconazole EP Impurity A (HCl) ; Tioconazole USP RC A ;

1-[(2RS)-2-[(2,4-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:22916-47-8
ISZ04 :
Isoconazole EP Impurity D ; Isoconazole Nitrate EP Impurity C ; Miconazole ;

1-[(2RS)-2-[(2,5-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:909277-71-0
MCN07B :
Miconazole EP Impurity G (Base) ;

1-[(2RS)-2-[(2,5-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole nitrate ;
CAS:909277-72-1
MCN07N :
Miconazole EP Impurity G (Nitrate) ;

1-[(2RS)-2-[(2,6-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:27523-40-6
MCN04B :
Miconazole EP Impurity D (Base) ; Isoconazole ;

1-[(2RS)-2-[(2,6-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:27523-40-6
ISZ00B :
Isoconazole (Base) ; Miconazole EP Impurity D (Base) ;

1-[(2RS)-2-[(2,6-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole nitrate ;
CAS:24168-96-5
MCN04N :
Miconazole EP Impurity D (Nitrate) ; Isoconazole Nitrate ;

1-[(2RS)-2-[(2,6-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole nitrate ;
CAS:24168-96-5
ISZ00N :
Isoconazole (Nitrate) ;

1-[(2RS)-2-[(2-Chlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:47363-37-1
MCN09B :
Miconazole EP Impurity I (Base) ; Miconazole USP RC I ;

1-[(2RS)-2-[(2-Chlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole nitrate ;
CAS:24169-00-4
MCN09N :
Miconazole EP Impurity I (Nitrate) ; Miconazole USP RC I (Nitrate) ;

1-[(2RS)-2-[(2-Chlorothiophen-3-yl)methoxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:65899-73-2
TCZ00 :
Tioconazole ;

1-[(2RS)-2-[(3,4-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:47447-55-2
MCN06B :
Miconazole EP Impurity F (Base) ; Miconazole USP RC F ;

1-[(2RS)-2-[(3,4-Dichlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole nitrate ;
CAS:27220-35-5
MCN06N :
Miconazole EP Impurity F (Nitrate) ; Miconazole USP RC F (Nitrate) ;

1-[(2RS)-2-[(4-Chlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:913837-72-6
MCN02B :
Miconazole EP Impurity B (Base) ;

1-[(2RS)-2-[(4-Chlorobenzyl)oxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole nitrate ;
MCN02N :
Miconazole EP Impurity B (Nitrate) ;

1-[(2RS)-2-[(5-Bromo-2-chlorothiophen-3-yl)methoxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:119386-76-4
TCZ03B :
Tioconazole EP Impurity C (Base) ; Tioconazole USP RC C ;

1-[(2RS)-2-[(5-Bromo-2-chlorothiophen-3-yl)methoxy]-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole HCl ;
TCZ03H :
Tioconazole EP Impurity C (HCl) ; Tioconazole USP RC C ;

1-[(2RS)-2-Benzyloxy-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole ;
CAS:181931-30-6
MCN08B :
Miconazole EP Impurity H (Base) ;

1-[(2RS)-2-Benzyloxy-2-(2,4-dichlorophenyl)ethyl]-1H-imidazole nitrate ;
MCN08N :
Miconazole EP Impurity H (Nitrate) ;

1-[(3,3-Diphenylpropyl)methylamino]-2-methyl-2-propanol ;
CAS:100442-33-9
LCN05B :
Lercanidipine EP Impurity E ;

1-[(3R)-3-[4-(Acyloyl)amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl]-2-propen-1-one ;
CAS:2031255-27-1
IBT91 :
Ibrutinib Diacryloyl Analog ;

1-[(3R)-3-[4-Amino-3-(4-phenoxyphenyl)-1-oxido-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl]-2-propen-1-one ;
CAS:2417548-74-2
IBT41 :
Ibrutinib N1-Oxide ;

1-[(3R)-3-[4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl]-2,3-dihydroxy-1-propanone ;
CAS:1654820-87-7
IBT93 :
Ibrutinib Dihydrodiol R-Isomer ; Ibrutinib M37 R-Isomer ;

1-[(3R)-3-[4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl]-2-propen-1-one ;
CAS:936563-96-1
IBT00 :
Ibrutinib ; Ibrutinib R-Isomer ;

1-[(3R)-3-[4-Amino-3-(4-phenoxyphenyl)-5-oxido-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl]-2-propen-1-one ;
CAS:2437254-47-0
IBT45 :
Ibrutinib N5-Oxide ;

1-[(3R,5S,6E)-7-[4-(4-Fluorophenyl)-6-(1-methylethyl)-2-[methyl(methyl sulfonyl)amino]-5-pyrimidinyl]-3,5-dihydroxy-6-heptenoate] +¦-D-gluco pyranuronic acid ;
CAS:503610-44-4
RSV90 :
Rosuvastatin Acyl-beta-D-Glucuronide ;

1-[(3S)-3-[4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl]-2-propen-1-one ;
CAS:936563-97-2
IBT50 :
Ibrutinib (S)-Isomer ;

1-[(3S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate]-+¦-D-glucopyranuronic acid ;
CAS:160962-46-9
LFX50 :
Levofloxacin Acyl-+¦-D-Glucuronide ;

1-[(3S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylate]-+¦-D-glucopyranuronic acid methyl ester ;
LFX51 :
Levofloxacin Acyl-+¦-D-Glucuronide Methyl Ester ;

1-[(4-Chlorophenyl)(phenyl)methyl]-4-(2-methylbenzyl)piperazine dihydrochloride ;
MCL22H :
Meclizine USP RC B ; Isomeclizine ; Meclizine otho-Methyl Isomer ; Meclizine 2-Methyl Analog ;

1-[(4-Chlorophenyl)phenylmethyl]-4-[(3-methylphenyl) methyl]-piperazine ;
CAS:569-65-3
MCL00B :
Meclizine (Base) ; Meclozine (Base) ;

1-[(4-Chlorophenyl)phenylmethyl]-4-[(3-methylphenyl) methyl]-piperazine dihydrochloride ;
CAS:1104-22-9
MCL00X :
Meclizine (2HCl) ; Meclizine Dihydrochloride ; Meclozine Dihydrochloride ;

1-[(4-Chlorophenyl)phenylmethyl]-4-[(3-methylphenyl) methyl]-piperazine dihydrochloride monohydrate ;
CAS:31884-77-2
MCL00H :
Meclizine (2HCl Monohydrate) ; Meclizine Dihydrochloride Monohydrate ; Meclozine Dihydrochloride Monohydrate ;

1-[(4-Chlorophenyl)phenylmethyl]-4-[(3-methylphenyl)methyl]piperazine 1,4-dioxide ;
CAS:114624-70-3
MCL36 :
Meclizine N,N-Dioxide ;

1-[(4-Chlorophenyl)phenylmethyl]-4-[(3-methylphenyl)methyl]piperazine 4-oxide ;
CAS:114624-69-0
MCL35 :
Meclizine N4-Oxide ;

1-[(4-Chlorophenyl)phenylmethyl]-4-[(4-methylphenyl)methyl]-piperazine ;
CAS:873395-53-0
MCL34B :
Meclizine 4-Methyl Analog ; 3-Desmethyl 4-Methyl Meclizine ;

1-[(4-Chlorophenyl)phenylmethyl]-4-[(4-methylphenyl)methyl]-piperazine dihydrochloride ;
CAS:879672-35-2
MCL34H :
Meclizine 4-Methyl Analog (2HCl) ; 3-Desmethyl 4-Methyl Meclizine Dihydrochloride ;

1-[(4-Methylphenyl)sulfonyl]-3-(3,3a,4,6a-tetrahydrocyclopenta[c]pyrrol-2(1H)-yl)urea ;
CAS:1808087-53-7
GCZ05 :
Gliclazide EP Impurity E ; Gliclazide BP Impurity E ; 6,7-Dehydro Gliclazide ;

1-[(4-Methylphenyl)sulfonyl]urea ;
CAS:1694-06-0
TBM02 :
Tolbutamide EP Impurity B ; Toluenesulfonylurea ;

1-[(4RS)-4-[4-(1,1-Dimethylethyl)phenyl]-4-hydroxybutyl]-4-(hydroxydiphenyl methyl)piperidine 1-oxide ;
CAS:634901-83-0
TFN03 :
Terfenadine EP Impurity C ; Terfenadine N-Oxide ;

1-[(4RS)-4-[4-(1,1-Dimethylethyl)phenyl]-4-hydroxybutyl]piperidine-4-carboxylic acid ;
TFN05 :
Terfenadine EP Impurity E ;

1-[(5E)-11-(3,7-Dimethyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl)-5-methyl-7-oxoundec-5-enyl]-3,7-dimethyl-3,7-dihydro-1H-purine-2,6-dione ;
CAS:874747-30-5
PTX10 :
Pentoxifylline EP Impurity J ;

1-[(7-Methoxy-1-naphthalenyl)oxy]-3-[(1-methylethyl)amino]-2-propanol ;
CAS:76275-53-1
PPN67 :
Propranolol 7-Methoxy Impurity ;

1-[[(2RS)-Tetrahydrofuran-2-yl]carbonyl]piperazine ;
CAS:63074-07-7
TRZ14B :
Terazosin EP Impurity N (Base) ;

1-[[(2RS)-Tetrahydrofuran-2-yl]carbonyl]piperazine HBr ;
CAS:63590-62-5
TRZ14H :
Terazosin EP Impurity N (HBr) ;

1-[[(4-Aminophenyl)sulfonyl](4,6-dimethyl-2-pyrimidinyl)amino]-1-deoxy-+¦-D-glucopyranuronic acid ;
CAS:52351-41-4
SDD61
Sulfadimidine RC 1 ; Sulfamidine N1-Glucuronide ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-(R)-hydroxy-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid ;
CAS:184763-26-6
MTL47A :
Montelukast (R)-Hydroxy Metabolite ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-(S)-hydroxy-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid ;
CAS:184763-29-9
MTL48A :
Montelukast (S)-Hydroxy Metabolite ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl] propyl]thio]methyl]cyclopropaneacetamide ;
CAS:866923-63-9
MTL70 :
Montelukast Amide ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl] propyl]thio]methyl]cyclopropaneacetic acid ;
CAS:158966-92-8
MTL00A :
Montelukast (Acid) ; (R)-Montelukast Acid ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl] propyl]thio]methyl]cyclopropaneacetic acid dicyclohexylamine salt ;
CAS:577953-88-9
MTL00D :
Montelukast (Dicyclohexylamine Salt) ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid sodium salt ;
CAS:151767-02-1
MTL00N :
Montelukast (Sodium) ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetonitrile ;
CAS:866923-62-8
MTL51 :
Montelukast Nitrile Impurity ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-methoxy-1-methylethyl)phenyl] propyl]thio]methyl]cyclopropaneacetic acid methyl ester ;
MTL61 :
Montelukast Acid Methyl Ester Methyl Ether ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-methoxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid ;
CAS:1351973-25-5
MTL50 :
Montelukast Methyl Ether ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-oxo-2-hydroxyethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid ;
MTL80 :
Montelukast Ketocarbinol Impurity ; Montelukast Hydroxymethylcarbonyl Analog ;

1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-[1-hydroxy-2-(methoxymethoxy)-1-methylethyl]phenyl]propyl]thio]methyl]cyclo propaneacetic acid ;
CAS:184764-27-0
MTL74 :
Montelukast Methoxymethoxy Impurity ;

1-[[[(1R)-1-[3-[(1R)-1-[[[1-(Carboxymethyl)cyclopropyl]methyl]thio]-2-(7-chloro-2-quinolinyl) ethyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl] propyl] thio]methyl]-cyclopropaneacetic acid ;
CAS:1187586-61-3
MTL04 :
Montelukast EP Impurity D ; Montelukast USP RC C ; Montelukast Michael Adduct (R,R)-Isomer ; Montelukast Michael Adduct-1 ; (R,R)-Montelukast Bis-Sulfide ;

1-[[[(1R)-1-[3-[(1RS)-1-[[[1-(Carboxymethyl)cyclopropyl]methyl]thio]-2-(7-chloro-2-quinolinyl) ethyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl] propyl] thio]methyl]-cyclopropaneacetic acid ;
CAS:1242260-05-4
MTL45 :
Montelukast Bis-Sulfide ;

1-[[[(1R)-1-[3-[(1S)-1-[[[1-(Carboxymethyl)cyclopropyl]methyl]thio]-2-(7-chloro-2-quinolinyl) ethyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl] propyl] thio]methyl]-cyclopropaneacetic acid ;
CAS:1187586-58-8
MTL05 :
Montelukast EP Impurity E ; Montelukast USP RC D ; Montelukast Michael Adduct R,S-Isomer ; Montelukast Michael Adduct-2 ; (R,S)-Montelukast Bis-Sulfide ;

1-[[[(1R)-1-[3-[2-(7-Chloro-2-quinolinyl)ethyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl] thio]methyl]cyclopropaneacetic acid ;
CAS:142147-67-9
MTL40A :
Montelukast Dihydro (Acid) ;

1-[[[(1R)-1-[3-[2-(7-Chloro-2-quinolinyl)ethyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl] thio]methyl]cyclopropaneacetic acid sodium salt ;
CAS:142147-98-6
MTL40N :
Montelukast Dihydro (Sodium Salt) ;

1-[[[(1RS)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl]propyl]thio]methyl]cyclopropaneacetic acid ;
MTL20A :
Montelukast Acid Racemate ; (RS)-Montelukast Acid ;

1-[[[(1S)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl] propyl]thio]methyl]cyclopropaneacetic acid sodium salt ;
CAS:190078-45-6
MTL01N :
Montelukast EP Impurity A ; Montelukast S-Isomer ; ent-Montelukast Sodium Salt ;

1-[[[1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl] thio]methyl]cyclopropaneacetic acid methyl ester ;
CAS:855473-51-7
MTL60 :
Montelukast Acid Methyl Ester ;

1-[[[1-[3-[2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methyl ethyl)phenyl]propyl] sulfinyl]methyl]cyclopropaneacetic acid ;
CAS:909849-96-3
MTL03 :
Montelukast EP Impurity C ; Montelukast USP RC A ; Montelukast Sulfoxide ;

1-[[2'-(Methoxycarbonyl)[1,1'-biphenyl]-4-yl]methyl]-4-methyl-2-propyl-1H-benzimidazole-6-carboxylic acid methyl ester ;
CAS:916332-38-2
TST77 :
Telmisartan Impurity 17 ;

1-[[3-(1,4-Dihydro-4-oxo-5,7-dimethylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl-piperazine ;
CAS:2169247-39-4
VDF01 :
Vardenafil EP Impurity A ; 7-Methyl Vardenafil (USP) ;

1-[[3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl-4-oxido-piperazine ;
CAS:448184-48-3
VDF53 :
Vardenafil N-Oxide ;

1-[[3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl-piperazine ;
CAS:224785-90-4
VDF00B :
Vardenafil (Base) ;

1-[[3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl-piperazine dihydrochloride ;
CAS:224789-15-5
VDF00D :
Vardenafil (2HCl) ; Vardenafil Dihydrochloride ;

1-[[3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl-piperazine hydrochloride ;
CAS:224785-91-5
VDF00X :
Vardenafil (HCl) ;

1-[[3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-4-ethyl-piperazine hydrochloride trihydrate ;
CAS:330808-88-3
VDF00H :
Vardenafil (HCl Trihydrate) ;

1-[[3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-4-hydroxyethyl-piperazine ;
CAS:224785-98-2
VDF50 :
Vardenafil Hydroxyethyl Impurity ;

1-[[3-(1,4-Dihydro-5-methyl-4-oxo-7-propylimidazo[5,1-f][1,2,4]triazin-2-yl)-4-ethoxyphenyl]sulfonyl]-piperazine ;
CAS:448184-46-1
VDF52 :
Vardenafil N-Desethyl Impurity ;

1-[[4-(2-Aminoethyl)phenyl]sulphonyl]-3-(trans-4-methyl cyclohexyl) urea ;
CAS:41176-98-1
GLM10B :
Glimepiride EP Impurity J (Base) ; Glimepiride USP RC J ; Glimepiride BP Impurity J ;

1-[[4-(2-Aminoethyl)phenyl]sulphonyl]-3-(trans-4-methyl cyclohexyl) urea HCl ;
GLM10H :
Glimepiride EP Impurity J (HCl) ; Glimepiride USP RC J ; Glimepiride BP Impurity J ;

1-[[4-[2-[(5-Chloro-2-methoxybenzoyl)amino]ethyl]phenyl]sulfonyl]-3-cyclohexylurea ;
CAS:10238-21-8
GLB00 :
Glyburide ; Glibenclamide ;

1-[[4-[2-[[(3-Ethyl-4-methyl-2-oxo-2,3-dihydro-1H-pyrrol-1-yl) carbonyl] amino] ethyl] phenyl] sulphonyl]-3-(4-methylphenyl)urea ;
GLM08 :
Glimepiride EP Impurity H ; Glimepiride USP RC H ; Glimepiride BP Impurity H ; Glimepiride Toluene Analog ;

1-[[7-[2-Hydroxy-3-[(1-methylethyl)amino]propyl]-1H-indol-4-yl]oxy]-3-[(1-methylethyl)amino]propan-2-ol ;
PDL01 :
Pindolol EP Impurity A ;

1-[[m-[2-(3-Ethyl-4-methyl-2-oxo-3-pyrroline-1-carboxamido) ethyl]phenyl] sulfonyl]-3-(trans-4-methylcyclohexyl)urea ;
CAS:791104-62-6
GLM04 :
Glimepiride EP Impurity D ; Glimepiride USP RC D ; Glimepiride BP Impurity D ; Glimepiride meta-Isomer ;

1-[[p-[2-(3-Ethyl-4-methyl-2-oxo-3-pyrroline-1-carboxamido) ethyl] phenyl] sulfonyl]-methoxy carbamate ;
CAS:119018-30-3
GLM03 :
Glimepiride EP Impurity C ; Glimepiride USP RC C ; Glimepiride BP Impurity C ; Glimepiride Methyl Ester ;

1-[1-(4-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetate] +¦-D-glucopyranuronic acid ;
CAS:75523-11-4
IDM51 :
Indomethacin Acyl-+¦-D-Glucuronide ; Indomethacin Glucuronide ;

1-[1-[(4RS)-4-(2-Fluorophenyl)-4-(4-fluorophenyl)butyl]-piperidin-4-yl]-1,3-dihydro-2H-benzimidazol-2-one ;
PZD03 :
Pimozide EP Impurity C ; Pimozide 4-Desfluoro 2-Fluoro Impurity ;

1-[1-[(4RS)-4-(4-Fluorophenyl)-4-phenylbutyl]piperidin-4-yl]-1,3-dihydro-2H-benzimidazol-2-one ;
CAS:1997-93-9
PZD02 :
Pimozide EP Impurity B ; Pimozide Desfluoro Impurity ;

1-[1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl]propyl]thio]methyl]cyclopropaneacetate] +¦-D-Glucopyranuronic acid ;
CAS:188717-17-1
MTL54B :
Montelukast Acyl-+¦-D-Glucuronide ;

1-[1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl]propyl]thio]methyl]cyclopropaneacetate] +¦-D-Glucopyranuronic acid acetate salt ;
MTL54A :
Montelukast Acyl-+¦-D-Glucuronide Acetate Salt ;

1-[1-[4,4-bis(4-Fluorophenyl)butyl]-1,2,3,6-tetrahydropyridin-4-yl]-1,3-dihydro-2H-benzimidazol-2-one ;
PZD04 :
Pimozide EP Impurity D ; Pimozide Dehydro Impurity ;

1-[1-[4,4-Bis(4-Fluorophenyl)butyl]-4-piperidinyl]-1,3-dihydro-2H-benzimidazol-2-one ;
CAS:2062-78-4
PZD00 :
Pimozide ;

1-[1-[4,4-bis(4-Fluorophenyl)butyl]piperidin-4-yl1-oxide]-1,3-dihydro-2H-benzimidazol-2-one ;
CAS:1083078-88-9
PZD05 :
Pimozide EP Impurity E ; Pimozide N-Oxide ;

1-[1-Methyl-5-(4-methylbenzoyl)-1H-pyrrole-2-acetate] +¦-D-glucopyranuronic acid ;
CAS:71595-19-2
TMT60 :
Tolmetin +¦-D-Glucuronide ;

1-[17+ƒ-(Acetyloxy)-3a-hydroxy-2+ƒ-(piperidin-1-yl)-5a-androstan-16+ƒ-yl]-1-methylpiperidinium ;
CAS:73319-13-8
VCR03 :
Vecuronium EP Impurity C ; Vecuronium USP RC F ;

1-[17+¦-(Acetyloxy)-2-(morpholin-4-yl)-3-oxo-5+¦-androst-1-en-16+¦-yl]-1-(prop-2-enyl)pyrrolidinium bromide ;
CAS:1190105-67-9
RCR08 :
Rocuronium EP Impurity H ; 1,2-Dehydro-3-Oxo Rocuronium Bromide ;

1-[17+¦-(Acetyloxy)-3+¦-hydroxy-2+¦-(morpholin-4-yl)-5+¦-androstan-16+¦-yl]-1-(prop-2-enyl)pyrrolidinium bromide ;
CAS:119302-91-9
RCR00 :
Rocuronium Bromide ;

1-[17+¦-(Acetyloxy)-3+¦-hydroxy-2+¦-(pyrrolidin-1-yl)-5+¦-androstan-16+¦-yl]-1-(prop-2-enyl)pyrrolidinium bromide ;
CAS:1190105-65-7
RCR05 :
Rocuronium EP Impurity E ; 2-Pyrrolidinyl Desmorpholinyl Rocuronium Bromide ;

1-[2-(2,4-Dichlorophenyl)-2-[(2,4-dichlorophenyl)methoxy]ethyl]-1H-imidazole ;
CAS:22916-47-8
MCN00B :
Miconazole (Base) ; Isoconazole EP Impurity D ; Isoconazole Nitrate EP Impurity C ;

1-[2-(2,4-Dichlorophenyl)-2-[(2,4-dichlorophenyl)methoxy]ethyl]-1H-imidazole nitrate ;
CAS:22832-87-7
MCN00N :
Miconazole (Nitrate) ;

1-[2-(2-Hydroxyethoxy)ethyl]piperazine ;
CAS:13349-82-1
QTP62B :
Quetiapine HEEP Impurity (Base) ;

1-[2-(2-Hydroxyethoxy)ethyl]piperazine dihydrochloride ;
CAS:85293-16-9
QTP62H :
Quetiapine HEEP Impurity (2HCl) ;

1-[2-(2-Hydroxyethyl)phenyoxy]-2,3-epoxypropane ;
CAS:104857-48-9
MTP40 :
Metoprolol Hydroxy Epoxide Impurity ;

1-[2-(2-Methoxyethyl)phenyoxy]-2,3-epoxypropane ;
CAS:56718-70-8
MTP27 :
Metoprolol Methoxy Epoxide ;

1-[2-(Dimethylamino)ethyl]-6,6a,7,11-tetrahydrooxazolo[3,4-b]pyrrolo[2,3-h]isoquinolin-9(3H)-one ;
CAS:1346599-24-3
ZMT23B :
Zolmitriptan USP RC C (Base) ;

1-[2-(Dimethylamino)ethyl]-6,6a,7,11-tetrahydrooxazolo[3,4-b]pyrrolo[2,3-h]isoquinolin-9(3H)-one formate salt ;
ZMT23F :
Zolmitriptan USP RC C (Formate) ;

1-[2-(Ethylsulfonyl)ethyl]-2-methyl-4-nitro-1H-imidazole ;
CAS:25459-12-5
TND02 :
Tinidazole EP Impurity B ; Tinidazole USP RC B ; 4-Nitro-5-Desnitro Tinidazole ;

1-[2-(Ethylsulfonyl)ethyl]-2-methyl-5-nitro-1H-imidazole ;
CAS:19387-91-8
TND00 :
Tinidazole ;

1-[2-[(2,3-Dimethylphenyl)thio]phenyl]-piperazine ;
CAS:1293489-77-6
VXT54 :
Vortioxetine 2,3-Isomer (Base) ;

1-[2-[(2,4-Dimethylphenyl)thio]phenyl]-piperazine ;
CAS:508233-74-7
VXT00B :
Vortioxetine (Base) ;

1-[2-[(2,4-Dimethylphenyl)thio]phenyl]-piperazine hydrobromide ;
CAS:960203-27-4
VXT00H :
Vortioxetine (HBr) ;

1-[2-[(2,4-Dimethylphenyl)thio]phenyl]-piperazine hydrochloride ;
CAS:960203-28-5
VXT00X :
Vortioxetine (HCl) ;

1-[2-[(2,6-Dimethylphenyl)thio]phenyl]-piperazine ;
CAS:508233-76-9
VXT27B :
Vortioxetine USP RC G (Base) ; Vortioxetine 2,6-Isomer (Base) ;

1-[2-[(2,6-Dimethylphenyl)thio]phenyl]-piperazine HBr ;
VXT27X :
Vortioxetine USP RC G (HBr) ; Vortioxetine 2,6-Isomer (HBr) ;

1-[2-[(2-Methylphenyl)thio]phenyl]-piperazine ;
CAS:1293489-71-0
VXT51 :
Vortioxetine 4-Desmethyl Impurity ;

1-[2-[(2RS)-2,3-Dihydroxypropoxy]phenyl]-3-phenylpropan-1-one ;
CAS:91401-73-9
PRP04 :
Propafenone EP Impurity D ; Despropylamino Hydroxy Propafenone ;

1-[2-[(2RS)-2-Hydroxy-3-(propylamino)propoxy]phenyl]-3phenylpropan-1-one hydrochloride ;
CAS:34183-22-7
PRP00H :
Propafenone Hydrochloride ;

1-[2-[(2RS)-2-Hydroxy-3-aminopropoxy]phenyl]-3phenylpropan-1-one ;
CAS:86383-21-3
PRP50B :
Propafenone N-Despropyl Impurity (Base) ;

1-[2-[(2RS)-2-Hydroxy-3-aminopropoxy]phenyl]-3phenylpropan-1-one hydrochloride ;
CAS:1188263-52-6
PRP50H :
Propafenone N-Despropyl Impurity (HCl) ;

1-[2-[(2RS)-2-Hydroxy-3-aminopropoxy]phenyl]-3phenylpropan-1-one oxalate ;
CAS:93885-20-2
PRP50X :
Propafenone N-Despropyl Impurity (Oxalate) ;

1-[2-[(2RS)-3-Chloro-2-hydroxypropoxy]phenyl]-3-phenylpropan-1-one ;
CAS:165279-79-8
PRP05 :
Propafenone EP Impurity E ; Despropylamino Chloro Propafenone ;

1-[2-[(3,4-Dimethylphenyl)thio]phenyl]-piperazine ;
CAS:1293489-74-3
VXT56B :
Vortioxetine 3,4-Isomer (Base) ; Vortioxetine Impurity 6 (Base) ;

1-[2-[(3,4-Dimethylphenyl)thio]phenyl]-piperazine HCl ;
CAS:1293342-97-8
VXT56H :
Vortioxetine 3,4-Isomer (HCl) ; Vortioxetine Impurity 6 (HCl) ;

1-[2-[(3-Methylphenyl)thio]phenyl]-piperazine ;
CAS:1293489-69-6
VXT52 :
Vortioxetine 3-Methyl Analog ;

1-[2-[(3S)-3-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-hydroxy propyl]phenyl]acetate ;
CAS:184764-13-4
MTL31 :
Montelukast (3S)-Hydroxy Methylketone ;

1-[2-[(4-Chlorophenyl)phenylmethoxy]ethyl]piperidine Fendizoate ;
CAS:85187-37-7
LCP70F :
Levocloperastine Racemate (Fendizoate) ; Cloperastine Fendizoate ; (D,L)-Cloperastine Fendizoate ;

1-[2-[(4-Methylphenyl)thio]phenyl]-piperazine ;
CAS:508233-82-7
VXT53 :
Vortioxetine 2-Desmethyl Impurity ; Vortioxetine 4-Methyl Analog ;

1-[2-[(5-Chloro-2,1,3-benzothiadiazol-4-yl)amino]-4,5-dihydro-1H-imidazol-1-yl]-ethanone ;
CAS:173532-15-5
TZN22 :
Tizanidine USP RC B ; N-Acetyl Tizanidine ;

1-[2-[(5-Chloro-2,4-dimethylphenyl)thio]phenyl]piperazine ;
CAS:1240670-87-4
VXT59B :
Vortioxetine 5-Chloro Impurity (Base) ; Vortioxetine Impurity 9 (Base) ;

1-[2-[(5-Chloro-2,4-dimethylphenyl)thio]phenyl]piperazine HBr ;
VXT59H :
Vortioxetine 5-Chloro Impurity (HBr) ; Vortioxetine Impurity 9 (HBr) ;

1-[2-[[(2RS)-Oxiranyl]methoxy]phenyl]-3-phenylpropan-1-one ;
CAS:22525-95-7
PRP03 :
Propafenone EP Impurity C ;

1-[2-[2-(3-Ethyl-4-methyl-2-oxo-3-pyrroline-1-carboxamido) ethyl] phenylsulfonyl]-3-(4-methylcyclohexyl)urea ;
CAS:878480-70-7
GLM09 :
Glimepiride EP Impurity I ; Glimepiride USP RC I ; Glimepiride BP Impurity I ; Glimepiride ortho Isomer ;

1-[2-[2-+¦-D-Glucopyranuronosyl-3-(propylamino)propoxy]phenyl]-3-phenyl-1-propanone ;
CAS:91411-76-6
PRP55 :
Propafenone +¦-D-Glucuronide ;

1-[2-Amino-1-(4-hydroxyphenyl) ethyl] cyclohexanol ;
CAS:149289-29-2
VLF33B :
Venlafaxine O-Desmethyl N,N-Didesmethyl Impurity (Base) ; Desvenlafaxine N,N-Didesmethyl Impurity ; Tridesmethylvenlafaxine ;

1-[2-Amino-1-(4-hydroxyphenyl) ethyl] cyclohexanol HCl ;
CAS:135308-76-8
VLF33H :
Venlafaxine O-Desmethyl N,N-Didesmethyl Impurity (HCl) ; Desvenlafaxine N,N-Didesmethyl Impurity (HCl) ;

1-[2-Amino-1-(4-methoxyphenyl) ethyl] cyclohexanol ;
CAS:93413-77-5
VLF03B :
"Venlafaxine EP Impurity C (Base) ; Dinorvenlafaxine ; N,N-Didesmethyl Venlafaxine (""DDMV"") ;"

1-[2-Amino-1-(4-methoxyphenyl) ethyl] cyclohexanol HCl ;
CAS:130198-05-9
VLF03H :
Venlafaxine EP Impurity C (HCl) ; Dinorvenlafaxine HCl ; N,N-Didesmethyl Venlafaxine HCl ;

1-[2-Deoxy-5O-(1-methylethyl)-+¦-D-erythro-pentofuranosyl]-5-methylpyrimidine-2,4(1H,3H)-dione ;
STV08 :
Stavudine EP Impurity H ; Stavudine BP Impurity H ;

1-[2-Dimethylamino-1-(4-methoxyphenyl) ethyl] cyclohexane ;
CAS:1076199-92-2
VLF07B :
Venlafaxine EP Impurity G (Base) ; Deshydroxy Venlafaxine ;

1-[2-Dimethylamino-1-(4-methoxyphenyl) ethyl] cyclohexane HCl ;
CAS:2108968-20-1
VLF07H :
Venlafaxine EP Impurity G (HCl) ; Deshydroxy Venlafaxine HCl ;

1-[2-Dimethylamino-1-(4-methoxyphenyl) ethyl] cyclohexanol HCl ;
CAS:99300-78-4
VLF00H :
Venlafaxine (HCl) ; Venlafaxine Hydrochloride ;

1-[2-Dimethylamino-1-(4-methoxyphenyl) ethyl] cyclohexanol N-oxide ;
CAS:1094598-37-4
VLF41 :
Venlafaxine N-Oxide ; Venlafaxine RC 1 ;

1-[2-Ethoxy-4-[2-[[(1S)-3-methyl-1-[2-(1-piperidinyl)phenyl]butyl]amino]-2-oxoethyl]benzoate] +¦-D-glucopyranuronic acid ;
CAS:1309112-13-7
RPG40 :
Repaglinide Acyl-+¦-D-Glucuronide ;

1-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-3-[4-(2-methoxyethyl) phenoxy] propan-2-ol ;
CAS:163685-37-8
MTP10 :
Metoprolol EP Impurity J ;

1-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-4-naphthalenol ;
CAS:10476-53-6
PPN64B :
Propranolol 4-Hydroxy Impurity (Base) ;

1-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-4-naphthalenol 4-sulfate ;
CAS:87075-33-0
PPN54 :
Propranolol 4-Sulfate Impurity ;

1-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-4-naphthalenol hydrochloride ;
CAS:14133-90-5
PPN64H :
Propranolol 4-Hydroxy Impurity (HCl) ;

1-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-5-naphthalenol hydrochloride ;
CAS:62117-35-5
PPN55H :
Propranolol 5-Hydroxy Impurity ;

1-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-7-naphthalenol ;
CAS:81907-81-5
PPN57 :
Propranolol 7-Hydroxy Impurity ;

1-[2-Methylamino-1-(4-methoxyphenyl) ethyl] cyclohexanol ;
CAS:149289-30-5
VLF04B :
Venlafaxine EP Impurity D (Base) ; Venlafaxine USP RC A ; N-Desmethyl Venlafaxine ;

1-[2-Methylamino-1-(4-methoxyphenyl) ethyl] cyclohexanol HCl ;
CAS:93413-90-2
VLF04H :
Venlafaxine EP Impurity D (HCl) ; Venlafaxine USP RC A ; N-Desmethyl Venlafaxine HCl ;

1-[3+¦,17+¦-bis(Acetyloxy)-2+¦-(morpholin-4-yl)-5+¦-androstan-16+¦-yl]-1-(prop-2-enyl)pyrrolidinium bromide ;
CAS:122483-73-2
RCR02 :
Rocuronium EP Impurity B ; 3-Acetyl Rocuronium Bromide ;

1-[3+¦,17+¦-bis(Acetyloxy)-2+¦-(pyrrolidin-1-yl)-5+¦-androstan-16+¦-yl]-1-(prop-2-enyl)pyrrolidinium bromide ;
CAS:1190105-66-8
RCR06 :
Rocuronium EP Impurity F ; 2-Pyrrolidinyl-3-Acetyl Desmorpholinyl Rocuronium Bromide ;

1-[3+¦,17+¦-Dihydroxy-2+¦-(morpholin-4-yl)-5+¦-androstan-16+¦-yl]-1-(prop-2-enyl)pyrrolidinium bromide ;
CAS:119302-86-2
RCR03 :
Rocuronium EP Impurity C ; 17-Desacetyl Rocuronium Bromide ;

1-[3+¦-(Acetyloxy)-17+¦-hydroxy-2+¦-(morpholin-4-yl)-5+¦-androstan-16+¦-yl]-1-(prop-2-enyl)pyrrolidinium bromide ;
CAS:1190105-63-5
RCR04 :
Rocuronium EP Impurity D ; 3-Acetyl-17-Desacetyl Rocuronium Bromide ;

1-[3-(Benzoyloxy)propyl]-2,3-dihydro-5-[(2R)-2-[[2-[2-(2,2,2-trifluoroethoxy)phenoxy]ethyl]amino]propyl]-1H-indole-7-carbonitrile ;
CAS:885340-11-4
SLD77B :
Silodosin RC 7 (Base) ;

1-[3-(Benzoyloxy)propyl]-2,3-dihydro-5-[(2R)-2-[[2-[2-(2,2,2-trifluoroethoxy)phenoxy]ethyl]amino]propyl]-1H-indole-7-carbonitrile ethanedioate ;
CAS:885340-12-5
SLD77X :
Silodosin RC 7 (Oxalate) ;

1-[3-[(EZ)-2-(Trin¼éuoromethyl)-9H-thioxanthen-9-ylidene]propyl]piperazine ;
CAS:22365-08-8
FPX03B :
Flupentixol EP Impurity C (Base) ;

1-[3-[(EZ)-2-(Trin¼éuoromethyl)-9H-thioxanthen-9-ylidene]propyl]piperazine dihydrochloride ;
FPX03H :
Flupentixol EP Impurity C(2HCl) ;

1-[3-[2-(Methylsulfonyl)-5-oxido-10H-phenothiazin-10-yl]propyl]-4-piperidinecarboxamide ;
CAS:18181-99-2
MPZ51B :
Metopimazine Sulfoxide ;

1-[3-[4-(3-Chlorophenyl)-1-piperazinyl]propyl]-3-oxo-1,2,4-triazolo[4,3-a]pyridinium ;
CAS:157072-18-9
TZD13B :
Trazodone EP Impurity M (Base) ; Trazodone Isomer ; Isotrazodone (USP) ;

1-[3-[4-Amino-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl]-2,3-dihydroxy-1-propanone ;
CAS:1226872-27-0
IBT92 :
Ibrutinib Dihydrodiol Racemate ; Ibrutinib M37 Racemate ;

1-[3-[4-Amino-3-[4-(4-hydroxyphenoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-1-yl]-1-piperidinyl]-2-propen-1-one ;
CAS:1288339-18-3
IBT40 :
Ibrutinib 4-Hydroxyphenoxy-áMetabolite ;

1-[3-Azido-2,3-dideoxy-5-O-(triphenylmethyl)-+ƒ-D-erythro-pentofuranosyl]-5-methylpyrimidine-2,4(1H,3H)-dione ;
CAS:29706-84-1
ZDV10 :
Zidovudine EP Impurity J ; Trityl Zidovudine ;

1-[3a,17+ƒ-Bis(acetyloxy)-2+ƒ-(piperidin-1-yl)-5a-androstan-16+ƒ-yl]-1-methylpiperidinium bromide ;
CAS:50700-72-6
VCR00 :
Vecuronium Bromide ;

1-[3a,17+ƒ-Dihydroxy-2+ƒ-(piperidin-1-yl)-5a-androstan-16+ƒ-yl]-1-methylpiperidinium ;
CAS:73319-30-9
VCR04 :
Vecuronium EP Impurity D ; Vecuronium USP RC C ;

1-[3a-(Acetyloxy)-17+ƒ-hydroxy-2+ƒ-(piperidin-1-yl)-5a-androstan-16+ƒ-yl]-1-methylpiperidinium ;
CAS:784988-81-4
VCR05 :
Vecuronium EP Impurity E ;

1-[4'-[(1',4-Dimethyl-2-propyl[2',6-bi-1H-benzimidazol]-1-yl)methyl][1,1'-biphenyl]-2-carboxylate] +¦-D-glucopyranuronic acid ;
CAS:250780-40-6
TST50 :
Telmisartan Acyl-+¦-D-Glucuronide ;

1-[4-(1,1-Dimethylethyl)phenyl]-4-[4-(hydroxydiphenylmethyl)piperidin-1-yl]butan-1-one ;
CAS:43076-30-8
TFN01 :
Terfenadine EP Impurity A ; Terfenadone ;

1-[4-(1-Hydroxy-1-methylethyl)-2-propyl-1-[[2'-(2H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1H-imidazol-5-yl]ethanone ;
CAS:1227626-45-0
OLM35 :
Olmesartan Methyl Ketone ; Olmesartan Acetyl Analog ;

1-[4-(2-Aminoethylphenyl)sulfonyl]-3-(cis-3-hydroxycyclohexyl)urea ;
CAS:1346603-77-7
GLB52B :
Glyburide Desbenzamide 3-Hydroxy cis-Isomer (Base) ;

1-[4-(2-Aminoethylphenyl)sulfonyl]-3-(cis-3-hydroxycyclohexyl)urea trifluoroacetic acid salt ;
CAS:1346603-78-8
GLB52T :
Glyburide Desbenzamide 3-Hydroxy cis-Isomer (TFA) ;

1-[4-(2-Aminoethylphenyl)sulfonyl]-3-(trans-4-hydroxycyclohexyl)urea ;
CAS:1346600-64-3
GLB53B :
Glyburide Desbenzamide 4-Hydroxy trans-Isomer (Base) ;

1-[4-(2-Aminoethylphenyl)sulfonyl]-3-(trans-4-hydroxycyclohexyl)urea trifluoroacetic acid salt ;
CAS:1346600-65-4
GLB53T :
Glyburide Desbenzamide 4-Hydroxy trans-Isomer (TFA) ;

1-[4-(2-Methoxyethyl)phenoxy]-3-[(1-methylethyl)nitrosoamino]-2-propanol ;
CAS:138768-62-4
MTP48 :
Metoprolol N-Nitroso Impurity ;

1-[4-(2-Methoxyphenyl)piperazin-1-yl]-3-(1-naphthyloxy)propan-2-ol ;
CAS:57149-07-2
NFP00 :
Naftopidil ;

1-[4-(2-Methylpropyl)phenyl]ethanone ;
CAS:38861-78-8
IBP05 :
Ibuprofen EP Impurity E ; Ibuprofen USP RC C ;

1-[4-(2-N-Boc-2-aminoethylphenyl)sulfonyl]-3-(cis-3-hydroxycyclohexyl)urea ;
CAS:1346598-55-7
GLB41
Glyburide Impurity 1 ;

1-[4-(2-N-Boc-2-aminoethylphenyl)sulfonyl]-3-(trans-4-hydroxycyclohexyl)urea ;
CAS:1346598-40-0
GLB42
Glyburide Impurity 2 ;

1-[4-(3-Chloropropoxy)-3-methoxyphenyl]ethanone ;
CAS:58113-30-7
ILP21 :
Iloperidone USP RC A ; Iloperidone Chloropropoxy Impurity ;

1-[4-(3-Hydroxypropoxy)-3-methoxyphenyl]ethanone ;
CAS:207298-39-3
ILP48 :
Iloperidone Hydroxypropoxy Impurity ;

1-[4-(4-Fluorophenyl)-4-oxobutyl]-4-phenylpiperidin-4-yl decanoate ;
CAS:1797824-64-6
HPD01B :
Haloperidol Decanoate EP Impurity A ; Dechloro Haloperidol Decanoate ;

1-[4-(Acetyloxy)-3-[(acetyloxy)methyl]phenyl]ethanone ;
CAS:24085-06-1
SAB63 :
Salbutamol RC 3 ;

1-[4-(Cyclopropylcarbonyl)-1-piperazinyl]-2,2,2-trifluoroethanone ;
CAS:1467759-67-6
OPB51 :
Olaparib TFA Impurity (USP) ;

1-[4-[(Dipropylamino)sulfonyl]benzoate]-B-D-glucopyranuronic acid ;
CAS:34017-15-7
PBN50 :
Probenecid Acyl +¦-D-Glucuronide ;

1-[4-[(Dipropylamino)sulfonyl]benzoate]-B-D-glucopyranuronic acid benzyl ester ;
PBN60 :
Probenecid Acyl +¦-D-Glucuronide Benzyl Ester ;

1-[4-[[(2RS,4RS)-2-(2,4-Dichlorophenyl)-2-[(1H-1,2,4-triazol-1-yl)methyl]-1,3-dioxolan-4-yl]methoxy]phenyl]-4-(1-methylethyl)piperazine ;
CAS:1486497-66-8
TNZ01 :
Terconazole EP Impurity A ; rel-(2S,4S)-Terconazole ;

1-[4-[[(2RS,4SR)-2-(2,4-Dichlorophenyl)-2-(1H-imidazol-1-yl-methyl)-1,3-dioxolan-4-yl]methoxy]phenyl]piperazine ;
CAS:67914-61-8
KCZ04 :
Ketoconazole EP Impurity D ; Deacetyl Ketonazole (USP) ;

1-[4-[[(2RS,4SR)-2-(2,4-Dichlorophenyl)-2-[(1H-1,2,4-triazol-1-yl)methyl]-1,3-dioxolan-4-yl]methoxy]phenyl]-4-(1-methylethyl)piperazine ;
CAS:67915-31-5
TNZ00 :
Terconazole ;

1-[4-[[(2RS,4SR)-2-(2,4-Dichlorophenyl)-2-[(4H-1,2,4-triazol-4-yl)methyl]-1,3-dioxolan-4-yl]methoxy]phenyl]-4-(1-methylethyl)piperazine ;
TNZ02 :
Terconazole EP Impurity B ; N4-Triazolyl Terconazole ;

1-[4-[[(3R,4R)-1-Acetyl-4-methyl-3-piperidinyl]methylamino]-7H-pyrrolo[2,3-d]pyrimidin-7-yl]ethanone ;
CAS:1608117-47-0
TFC99B :
Tofacitinib RC 9 ; Tofacitinib Diacetyl Impurity ;

1-[4-[[6-O-(6-Deoxy-a-L-mannopyranosyl)-+ƒ-D-glucopyranosyl]oxy]-2,6-dihydroxyphenyl]-3-(3-hydroxy-4-methoxyphenyl)propan-1-one ;
CAS:35573-79-6
HSP50 :
Hesperidin Dihydrochalcone ; Neohesperidin Dihydrochalcone EP Impurity E ;

1-[4-[2-(3-Ethyl-4-methyl-2-oxo-3-pyrroline-1-carboxamido) ethyl] phenylsulfonyl]-3-(4-cis-methylcyclohexyl)urea ;
CAS:684286-46-2
GLM01 :
Glimepiride EP Impurity A ; Glimepiride USP RC A ; Glimepiride BP Impurity A ; Glimepiride cis-Isomer ;

1-[4-[2-(Dimethylamino)ethoxy]phenyl]-1,2-diphenylbutan-1-ol ;
CAS:748-97-0
TMX02B :
Tamoxifen EP Impurity B ;

1-[4-[2-hydroxy-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethoxy]-3-(hydroxymethyl)phenyl]-2-[[6-(3-phenylbutoxy)hexyl]amino]ethanol ;
CAS:1391052-04-2
SAL04B :
Salmeterol EP Impurity D (Base) ; Salmeterol O-Alkyl Impurity ;

1-[4-[2-hydroxy-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethoxy]-3-(hydroxymethyl)phenyl]-2-[[6-(4-phenylbutoxy)hexyl]amino]ethanol tartrate salt ;
SAL05T :
Salmeterol EP Impurity D (Tartrate) ; Salmeterol O-Alkyl Impurity (Tartrate) ;

1-[4-[2-Hydroxy-3-[(1-methylethyl)amino]propoxy]-1H-indol-1-yl]-3-[(1-methylethyl)amino]propan-2-ol ;
CAS:130115-63-8
PDL02 :
Pindolol EP Impurity B ;

1-[4-[3-[4-(1,2-Benzisoxazol-3-yl)-1-piperidinyl]propoxy]-3-methoxyphenyl] ethanone ;
CAS:133454-46-3
ILP45 :
Iloperidone Desfluoro Impurity ;

1-[4-[3-[4-(4-Fluoro-2-hydroxybenzoyl)-1-piperidinyl]propoxy]-3-methoxy phenyl]-ethanone ;
CAS:170170-50-0
ILP46 :
Iloperidone Diketo Impurity ;

1-[4-[3-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]propoxy]-3-methoxyphenyl]ethanone ;
CAS:133454-47-4
ILP00 :
Iloperidone ;

1-[4-[4-(1,1-Dimethylethyl)phenyl]but-3-enyl]-4-(diphenylmethylene)piperidine ;
TFN06 :
Terfenadine EP Impurity F ;

1-[4-Hydroxy-3-(hydroxymethyl)butyl] -7-imino-1,3,6,8-tetraazaspiro[4.4] nonane-2,4,9-trione ;
CAS:1379017-92-1
PCV55 :
Penciclovir Impurity 5 ; Penciclovir Spiro Impurity ;

1-[4-Hydroxy-3-(hydroxymethyl)phenyl]-2-[(4-phenylbutyl)amino] ethanol ;
CAS:1798014-51-3
SAL01B :
Salmeterol EP Impurity A (Base) ; Salmeterol USP RC A ;

1-[4-Hydroxy-3-(hydroxymethyl)phenyl]-2-[(4-phenylbutyl)amino] ethanol formate ;
SAL01F :
Salmeterol EP Impurity A (Formate) ; Salmeterol USP RC A ;

1-[4-Hydroxy-3-(hydroxymethyl)phenyl]-2-[[6-(1-methyl-3-phenylpropoxy) hexyl] amino]ethanol ;
CAS:108928-81-0
SAL05B :
Salmeterol EP Impurity E ; Salmeterol USP RC B ;

1-[4-Hydroxy-3-(hydroxymethyl)phenyl]-2-[[6-(2-phenylethoxy)hexyl]amino] ethanol ;
CAS:94749-02-7
SAL02B :
Salmeterol EP Impurity B ; Salmeterol Phenylethoxy Impurity (USP) ;

1-[4-Hydroxy-3-(hydroxymethyl)phenyl]-2-[[6-(3-phenylpropoxy)hexyl]amino] ethanol ;
CAS:94749-11-8
SAL03B :
Salmeterol EP Impurity C (Base) ; Salmeterol Phenylpropoxy Impurity (USP) ;

1-[4-Hydroxy-3-(hydroxymethyl)phenyl]-2-[[6-(3-phenylpropoxy)hexyl]amino] ethanol formate ;
SAL03F :
Salmeterol EP Impurity C (Formate) ; Salmeterol Phenylpropoxy Impurity (USP) ;

1-[4-Hydroxy-3-(Hydroxymethyl)phenyl]-2-[[6-(4-phenylbutoxy)hexyl] amino] ethanol 1-hydroxynaphthalene-2-carboxylate ;
CAS:94749-08-3
SAL00X :
Salmeterol Xinafoate ;

1-[4-hydroxy-3-[[[2-hydroxy-2-[4-hydroxy-3-(hydroxymethyl)phenyl]ethyl] [6-(4-phenylbutoxy)hexyl]amino]methyl]phenyl]-2-[[6-(4-phenylbutoxy)hexyl] amino]ethanol ;
CAS:1391051-88-9 2470130-36-8
SAL07B :
Salmeterol EP Impurity G ; Salmeterol N-Alkyl Impurity (USP) ; Salmeterol Dimer Impurity ;

1-[5-(Aminosulfonyl)-4-chloro-2-[(2-furanylmethyl)amino]benzoate] -+¦-D-glucopyranuronic acid ;
CAS:72967-59-0
FRS50 :
Furosemide Acyl Glucuronide ;

1-[5-(Aminosulfonyl)-4-chloro-2-[(2-furanylmethyl)amino]benzoate]-+¦-D-glucopyranuronic acid allyl ester ;
FRS51 :
Furosemide Acyl Glucuronide Allyl Ester ;

1-[5-[4'-[(2-Butyl-4-oxo-1,3-diazaspiro[4.4]non-1-en-3-yl)methyl][1,1'-biphenyl]-2-yl]-2H-tetrazol-2-yl]-1-deoxy-+¦-D-glucopyranuronic acid ;
CAS:160205-58-3
IST60 :
Irbesartan N-+¦-D-Glucuronide ;

1-[cis-4-Cyano-4-(4-fluorophenyl)cyclohexyl]-3-methyl-4-phenylpyridinium ;
LVC11 :
Levocabastine EP Impurity K ;

1-[cis-4-Cyano-4-(4-fluorophenyl)cyclohexyl]-4-phenylpiperidine-4-carboxylic acid ;
CAS:80139-90-8
LVC04B :
Levocabastine EP Impurity D (Base) ; Levocabastine USP RC A (Base) ; Desmethyl Cabastine ;

1-[cis-4-Cyano-4-(4-fluorophenyl)cyclohexyl]-4-phenylpiperidine-4-carboxylic acid ;
CAS:80139-91-9
LVC04H :
Levocabastine EP Impurity D (HCl) ; Levocabastine USP RC A (HCl) ; Desmethyl Cabastine HCl ;

1-Acetyl-4-(8-chloro-5,6-dihydro-11H-benzo[5,6]cyclohepta[1,2-b]pyridin-11-ylidene)-piperidine ;
CAS:117796-52-8
LRT11 :
Loratadine N-Acetyl Impurity ; Desloratadine N-Acetyl Impurity ;

1-Acetyl-4-[4-[[(2RS,4RS)-2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-yl-methyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-piperazine ;
CAS:83374-59-8
KCZ03 :
Ketoconazole EP Impurity C ; Ketoconazole 4-Epimer ; trans-Ketoconazole (USP) ;

1-Acetyl-4-[4-[[(2RS,4SR)-2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-yl- methyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-1,2,3,4-tetrahydropyrazine ;
CAS:254912-63-5
KCZ01 :
Ketoconazole EP Impurity A ; 2,3-Dehydro Ketoconazole ;

1-Acetyl-4-[4-[[(2RS,4SR)-2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-yl- methyl)-1,3-dioxolan-4-yl]methoxy]phenyl]-piperazine ;
CAS:65277-42-1
KCZ00 :
Ketoconazole ;

1-Acetyl-4-[4-[[(2RS,4SR)-2-(2,4-dichlorophenyl)-2-(1H-imidazol-1-yl-methyl)-1,3-dioxolan-4-yl]methoxy]-3-[4-(4-acetylpiperazin-1-yl)phenoxy] phenyl]piperazine ;
CAS:1346598-39-7
KCZ02 :
Ketoconazole EP Impurity B ;

1-Acetylimidazolidine-2-thione ;
CAS:5391-52-6
TZN23 :
Tizanidine USP RC C ;

1-Amino-3-(1-naphthalenyloxy)-2-propanol hydrochloride ;
CAS:62618-09-1
PPN56H :
Propranolol N-Desisopropyl Impurity; Nor Propranolol HCl ;

1-Amino-3-(3,5-dimethylphenoxy)propan-2-ol ;
CAS:66766-07-2
MXL22 :
Metaxalone USP RC B ;

1-Amino-3-adamantanol ; 3-Amino-1-adamantanol ;
CAS:702-82-9
VDG51 :
Vildagliptin Amino Alcohol Impurity ;

1-Amino-3-nitroadamantane ;
CAS:243145-00-8
VDG61 :
Vildagliptin Impurity 1 ;

1-Amino-5,8-dihydroxy-4-(2-(2-hydroxyethylamino)ethylamino)anthracene-9,10-dione ;
CAS:89991-52-6
MXT01B :
Mitoxantrone EP Impurity A (Base) ;

1-Amino-5,8-dihydroxy-4-(2-(2-hydroxyethylamino)ethylamino)anthracene-9,10-dione HCl ;
MXT01H :
Mitoxantrone EP Impurity A (HCl) ;

1-Aminoimidazolidine-2,4-dione ;
CAS:6301-02-06 00:00:00
HDT51B :
Hydantoin 1-Amino (Base) ;

1-Aminoimidazolidine-2,4-dione hydrochloride ;
CAS:2827-56-7
HDT51H :
Hydantoin 1-Amino (HCl) ;

1-Aminoindan ;
CAS:34698-41-4
RSG64B :
Rasagiline RC 4 (Base) ;

1-Aminoindan HCl ;
CAS:70146-15-5
RSG64H :
Rasagiline RC 4 (HCl) ;

1-Azepan-1-yl-3-[(4-methylphenyl)sulfonyl]urea ;
CAS:1156-19-0
TBM03 :
Tolbutamide EP Impurity C ; Tolazamide ;

1-Benzisoxazol-3-yl-methanesulfonamide ;
CAS:68291-97-4
ZNS00 :
Zonisamide ;

1-Benzisoxazol-3-yl-N-methylmethanesulfonamide ;
CAS:68292-02-4
ZNS32 :
Zonisamide N-Methyl Impurity (USP) ;

1-Benzo[b]thien-2-yl-ethanone ;
CAS:22720-75-8
ZLT23 :
Zileuton USP RC C ; 2-Acetylbenzothiophene ;

1-Benzyl-1H-pyrazolo[3,4-b]pyridine-3-carboxamidine ;
RCG67 :
Riociguat RC 7 ;

1-Benzyl-2-methyl-1H-imidazole-5-carbaldehyde ;
CAS:39269-74-4
TGP66 :
Tegoprazan RC 6 ;

1-Benzyl-3,7-dimethyl-3,7-dihydro-1H-purine-2,6-dione ;
CAS:55247-90-0
PTX09 :
Pentoxifylline EP Impurity I ;

1-Benzyl-4-(1-(2,3-dimethylphenyl)ethyl)-1H-imidazole ;
MDT62 :
Medetomidine RC2

1-Benzyl-4-(1-(2,3-dimethylphenyl)vinyl)-1H-imidazole ;
CAS:1311376-20-1
MDT63 :
Medetomidine RC3

1-Benzyl-4-hydroxy-2-methyl-1H-benzo[d]imidazole-6-carboxylic acid ;
CAS:1640981-19-6
TGP65 :
Tegoprazan RC 5 ;

1-Benzyl-4-hydroxy-N,N,2-trimethyl-1H-benzo[d]imidazole-6-carboxamide ;
CAS:1640981-20-9
TGP64 :
Tegoprazan RC 4 ;

1-Benzyl-5-[1-(2,3-dimethylphenyl)ethyl]-1H-imidazole ;
CAS:2250242-52-3
MDT55 :
Medetomidine N-Benzyl Impurity ;

1-Benzyl-5-[1-(2,3-dimethylphenyl)vinyl]-1H-imidazole ;
CAS:2250243-56-0
MDT56 :
Medetomidine N-Benzyl Vinyl Analog ;

1-Benzyl-5-ethoxyimidazolidine-2,4-dione ;
CAS:65855-02-9
HDT52 :
Hydantoin 1-Benzyl 5-Ethoxy ;

1-Benzyl-N,4-dimethylpiperidin-3-amine ;
CAS:384338-23-2
TFCA7B :
Tofacitinib RC 17 ;

1-Benzylpiperidin-4-amine ;
CAS:50541-93-0
LPD51 :
Lomitapide BPA Impurity ; Clebopride EP Impurity B ;

1-Bromo-2-(bromomethyl)-4,5-dimethoxybenzene ;
CAS:53207-00-4
GMF61 :
Gemifloxacin RC 1 ;

1-Bromo-2-(chloromethyl)-4,5-dimethoxybenzene ;
CAS:54370-01-3
PVB62 :
Pinaverium Impurity 2 ;

1-Bromo-3,5,7-trimethyladamantane ;
CAS:53398-55-3
MMT63 :
Memantine Impurity 3 ;

1-Bromo-3,5-dimethyladamantane ;
CAS:941-37-7
MMT24 :
Memantine USP RC D ;

1-Bromo-4-hydroxy-7-phenoxyisoquinoline-3-carboxylic acid ;
RXD67 :
Roxadustat RC 7 ;

1-Bromo-5-chloro-1-(2-fluorophenyl)pentan-2-one ;
CAS:1373350-58-3
PRS77 ;
Prasugrel Impurity 7 ;

1-Butyl-3-(4-(hydroxymethyl)phenylsulfonyl)urea ;
CAS:5719-85-7
TBM53 :
Tolbutamide Hydroxy ;

1-Butyl-3-[(4-methylphenyl)sulfonyl]urea ;
CAS:64-77-7
TBM00 :
Tolbutamide ;

1-Butyl-3-[[4-[2-[(5-chloro-2-methoxybenzoyl)amino]ethyl]phenyl]sulfonyl]urea ;
CAS:38160-73-5
GLB04 :
Glyburide EP Impurity D ; Glibenclamide EP Impurity D ;

1-Butylimidazolidine-2,4-dione ;
CAS:33599-32-5
HDT54 :
Hydantoin 1-Butyl ;

1-Carbamoylguanidine ;
CAS:141-83-3
MTF51B :
Metformin Guanylurea Impurity (Base) ; Guanylurea ;

1-Carbamoylguanidine HCl ;
CAS:926-72-7
MTF51H :
Metformin Guanylurea Impurity (HCl) ; Guanylurea HCl ;

1-Carbamoylguanidine hemisulfate ;
CAS:591-01-5
MTF51S :
Metformin Guanylurea Impurity (Hemisulfate) ; Guanylurea Hemisulfate ;

1-Chloro-1-deoxy-2,3:4,5-di-O-isopropylidene-+¦-D-fructopyranose ;
CAS:32785-90-3
TPM61 :
Topiramate Impurity 1 ;

1-Chloro-10H-phenothiazine ;
CAS:1910-85-6
PPZ79 :
Perphenazine Impurity 9 ;

1-Chloro-2-hydroxy-3-[4-(2-methoxyethyl)phenoxy]-propane ;
CAS:56718-76-4
MTP22 :
Metoprolol USP RC B ;

1-Chloro-3,5-dimethyladamantane ;
CAS:707-36-8
MMT23 :
Memantine USP RC C ;

1-Chloro-3-(2-methyl-4-nitro-1H-imidazol-1-yl)propan-2-ol ;
CAS:14419-11-5
ODZ54 :
Ornidazole 4-Nitro Isomer ; Ornidazole N-Isomer ;

1-Chloro-3-(2-methyl-5-nitro-1H-imidazol-1-yl)propan-2-ol ;
CAS:16773-42-5
ODZ00 :
Ornidazole ;

1-Chloro-3-(methylsulfanyl)propan-2-ol ;
CAS:23451-66-3
NFT51 :
Nifuratel Chlorohydrin Impurity ;

1-Chloro-3-(naphthalen-1-yloxy)propan-2-ol ;
CAS:20133-93-1
PPN61 :
Propranolol RC 1 ;

1-Chloro-4,4-difluoro-N-[(1S)-3-[(3-exo)-3-[3-methyl-5-(1-methylethyl)-4H-1,2,4-triazol-4-yl]-8- azabicyclo[3.2.1]oct-8-yl]-1-phenylpropyl]-cyclohexane carboxamide ;
MRV55 :
Maraviroc JCS Impurity-5 ; Chloro Maraviroc ;

1-Chloro-4-(chloromethyl)benzene ;
CAS:104-83-6
PLS68 :
Pitolisant RC 8 ;

1-Chloro-4-methoxy-2-nitrobenzene ;
CAS:10298-80-3
ITM64 :
Iguratimod Impurity 4 ;

1-Chlorophthalazine ;
CAS:5784-45-2
HDL52 :
Hydralazine Chloro Impurity ;

1-Cyano-3-(1-methylethyl)guanidine ;
CAS:44830-55-9
PGN01B :
Proguanil EP Impurity A ; Proguanil USP RC A ;

1-Cyanocyclohexaneacetonitrile ; 1-Cyanomethyl-1-cyclohexanenitrile ;
CAS:4172-99-0
GBP31 :
Gabapentin Di-Nitrile Impurity ;

1-Cyanoguanidine ;
CAS:461-58-5
MTF01B :
Metformin EP Impurity A ; Metformin USP RC A ;

1-Cyclohexyl-3-(p-sulfamoylphenethyl)urea ;
CAS:10080-05-4
GLP08 :
Glipizide EP Impurity H ; Glipizide BP Impurity H ;

1-Cyclohexyl-3-[[4-[2-[(3,5-dichloro-2-methoxybenzoyl)amino]ethyl]phenyl]sulfonyl]urea ;
CAS:57334-89-1
GLB05 :
Glyburide EP Impurity E ; Glibenclamide EP Impurity E ;

1-Cyclohexyl-3-[[4-[2-[(cyclohexylcarbamoyl)amino]ethyl]phenyl]sulfonyl]urea ;
CAS:10079-35-3
GLB03 :
Glyburide EP Impurity C ; Glibenclamide EP Impurity C ; Glipizide EP Impurity I ; Glipizide BP Impurity I ;

1-Cyclohexyl-3-[[4-[2-[[(6-methylpyrazin-2-yl)carbonyl]amino]ethyl]phenyl] sulphonyl]urea ;
CAS:66375-96-0
GLP05 :
Glipizide EP Impurity E ; Glipizide BP Impurity E ; 5-Desmethyl-6-Methyl Glipizide ; Glipizide 6-Methyl Analog ;

1-Cyclohexyl-3-[[p-[2-(5-methylpyrazinecarboxamido)ethyl]phenyl] sulfonyl]urea ;
CAS:29094-61-9
GLP00 :
Glipizide ;

1-Cyclopentyl-4-nitrosopiperazine ;
CAS:61379-66-6
RFT51 :
Rifapentine RC 1 ;

1-Cyclopropyl-2-(2-fluorophenyl)ethane-1,2-dione ;
CAS:1391054-37-7
PRS07 :
Prasugrel EP Impurity G ; Prasugrel Diketone (USP) ;

1-Cyclopropyl-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)-2-(2-fluoro phenyl)ethanone ;
CAS:201049-78-7
PRS63B :
Prasugrel Desacetyloxy Impurity (Base) ; 2-Desacetoxy Prasugrel ;

1-Cyclopropyl-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)-2-(2-fluoro phenyl)ethanone HCl ;
CAS:1618108-01-2
PRS63H :
Prasugrel Desacetyloxy Impurity (HCl) ; 2-Desacetoxy Prasugrel HCl ;

1-Cyclopropyl-5,6,7,8-tetrafluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:106890-70-4
OBX06 :
Orbifloxacin EP Impurity F ;

1-Cyclopropyl-5,7-bis[(3R,5S)-3,5-dimethylpiperazin-1-yl]6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
OBX01 :
Orbifloxacin EP Impurity A ;

1-Cyclopropyl-5-[(3R,5S)-3,5-dimethylpiperazin-1-yl]-6,7,8-trifluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
OBX05 :
Orbifloxacin EP Impurity E ;

1-Cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic acid ;
CAS:94695-52-0
MXF17 :
Moxifloxacin Trifluoro Acid Impurity ;

1-Cyclopropyl-6,7,8-trifluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic acid ethyl ester ;
CAS:94242-51-0
MXF37 :
Moxifloxacin Trifluoro Ethyl Ester ;

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-4-oxoquinoline-3-carboxylic acid ;
CAS:93107-30-3
MXF33 :
Moxifloxacin Difluoro Acid Impurity ;

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-ethoxy-4-oxo-3-quinoline carboxylic acid ;
CAS:143158-55-8
MXF16 :
Moxifloxacin Difluoro Ethoxy Acid Impurity ;

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-ethoxy-4-oxo-3-quinoline carboxylic acid ethyl ester ;
CAS:172602-83-4
MXF36 :
Moxifloxacin Difluoro Ethoxy Ethyl Ester ;

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinoline carboxylic acid ;
CAS:154093-72-8
MXF14 :
Moxifloxacin Difluoro Hydroxy Acid ; Gatifloxacin USP Impurity B ; Moxifloxacin 8-Hydroxyquinoline Acid Impurity ;

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-hydroxy-4-oxo-3-quinoline carboxylic acid ethyl ester ;
CAS:452092-31-8
MXF34 :
Moxifloxacin Difluoro Hydroxy Ethyl Ester ;

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid ;
CAS:112811-72-0
MXF15 :
Moxifloxacin Difluoro Methoxy Acid ; Gatifloxacin USP Impurity C ; Moxifloxacin 8-Methoxyquinoline Acid Impurity ; Ciprofloxacin Difluoro 8-Methoxy Impurity ;

1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinoline carboxylic acid ethyl ester ;
CAS:112811-71-9
MXF35 :
Moxifloxacin Difluoro Methoxy Ethyl Ester ;

1-Cyclopropyl-6,7-difluoro-8-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:154093-72-8
GTF32 :
Gatifloxacin USP Impurity B ; Moxifloxacin Difluoro Hydroxy Acid ; Difluorohydroxy Gatifloxacin (USP) ;

1-Cyclopropyl-6,7-difluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:112811-72-0
GTF33 :
Gatifloxacin USP Impurity C ; Moxifloxacin Difluoro Methoxy Acid ; Difluoromethoxy Gatifloxacin (USP) ;

1-Cyclopropyl-6,8-difluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:103460-89-5
GTF50 :
Gatifloxacin Desmethoxy 8-Fluoro ;

1-Cyclopropyl-6,8-difluoro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:151213-15-9
MXF01B :
Moxifloxacin EP Impurity A (Base) ; Moxifloxacin USP RC A ; Moxifloxacin Difluoro Analog ;

1-Cyclopropyl-6,8-difluoro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid HCl ;
MXF01H :
Moxifloxacin EP Impurity A (HCl) ; Moxifloxacin USP RC A ; Moxifloxacin HCl Difluoro Analog ;

1-Cyclopropyl-6,8-dimethoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:1029364-73-5
MXF02B :
Moxifloxacin EP Impurity B (Base) ; Moxifloxacin USP RC B ; Moxifloxacin Dimethoxy Analog ;

1-Cyclopropyl-6,8-dimethoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid HCl ;
MXF02H :
Moxifloxacin EP Impurity B (HCl) ; Moxifloxacin USP RC B ; Moxifloxacin HCl Dimethoxy Analog ;

1-Cyclopropyl-6-fluoro-1,4-dihydro-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid ;
CAS:93107-32-5
GTF52B :
Gatifloxacin Desmethoxy Impurity (Base) ;

1-Cyclopropyl-6-fluoro-1,4-dihydro-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid trifluoroacetic acid salt ;
CAS:1215348-50-7
GTF52T :
Gatifloxacin Desmethoxy Impurity (TFA Salt) ;

1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-(3-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid N-oxide ;
CAS:1798008-43-1
GTF56 :
Gatifloxacin N-Oxide ;

1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[(4aS,7aS)-octahydro-1-methyl-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid ;
CAS:721970-37-2 & 1179992-99-4
MXF06B :
Moxifloxacin EP Impurity F (Base) ; Moxifloxacin USP RC F ; N-Methyl Moxifloxacin ;

1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[(4aS,7aS)-octahydro-1-methyl-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid hydrochloride ;
CAS:1350716-67-4
MXF06H :
Moxifloxacin EP Impurity F (HCl) ; Moxifloxacin USP RC F (HCl) ; N-Methyl Moxifloxacin HCl ;

1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic acid methyl ester ;
CAS:721970-35-0
MXF08B :
Moxifloxacin EP Impurity H ; Moxifloxacin Methyl Ester ;

1-Cyclopropyl-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid ;
CAS:137118-01-5
GFX50 :
Gemifloxacin Despyrrolidinyl Impurity ;

1-Cyclopropyl-6-fluoro-8-hydroxy-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:616205-76-6
GTF21 :
Gatifloxacin USP RC A ; Gatifloxacin O-Desmethyl Impurity ; 8-Hydroxy Gatifloxacin (USP) ;

1-Cyclopropyl-6-fluoro-8-hydroxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:721970-36-1
MXF05B :
Moxifloxacin EP Impurity E (Base) ; Moxifloxacin USP RC E ; Moxifloxacin O-Desmethyl Analog ; 8-Hydroxy Moxifloxacin ;

1-Cyclopropyl-6-fluoro-8-hydroxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid HBr ;
CAS:1292904-74-5
MXF05H :
Moxifloxacin EP Impurity E (HBr) ; Moxifloxacin HBr USP RC E ; Moxifloxacin HBr O-Desmethyl Analog ; 8-Hydroxy Moxifloxacin HBr ;

1-Cyclopropyl-6-fluoro-8-hydroxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid HCl ;
CAS:2252446-71-0
MXF05X :
Moxifloxacin EP Impurity E (HCl) ; Moxifloxacin HCl USP RC E ; Moxifloxacin HCl O-Desmethyl Analog ; 8-Hydroxy Moxifloxacin HCl ;

1-Cyclopropyl-6-fluoro-8-methoxy-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:112811-57-1
GTF24 :
Gatifloxacin USP RC D ; Gatifloxacin 3-Desmethyl Impurity ; Desmethyl Gatifloxacin (USP) ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-(2-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:1029364-65-5
GTF25A :
Gatifloxacin USP RC E (Acid) ; Gatifloxacin USP Impurity E ; Gatifloxacin 2-Methyl Isomer ; Iso-Gatifloxacin ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-(2-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid HCl ;
CAS:1219097-41-2
GTF25H :
Gatifloxacin USP RC E (HCl) ; Gatifloxacin USP Impurity E ; Gatifloxacin HCl 2-Methyl Isomer ; Iso-Gatifloxacin HCl ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-(2-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid sodium salt ;
GTF25N :
Gatifloxacin USP RC E (Sodium Salt) ; Gatifloxacin USP Impurity E ; Gatifloxacin Sodium 2-Methyl Isomer ; Iso-Gatifloxacin Sodium ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aR,7aR)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride ;
CAS:1394029-14-1 1346603-25-5
MXF07H :
Moxifloxacin EP Impurity G (HCl) ; Moxifloxacin USP RC G (HCl) ; ent-Moxifloxacin HCl ; d-Moxifloxacin HCl; (4aR,7aR)-Moxifloxacin HCl ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aR,7aR)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride ;
CAS:268545-13-7
MXF07B :
Moxifloxacin EP Impurity G (Base) ;Moxifloxacin USP RC G (Base) ; ent-Moxifloxacin ; d-Moxifloxacin ; (4aR,7aR)-Moxifloxacin ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aR,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:855661-71-1
MXF50B :
Moxifloxacin (4aR,7aS)-Isomer (Base) ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aR,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride ;
MXF50H :
Moxifloxacin (4aR,7aS)-Isomer HCl ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aR)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:855661-74-4
MXF51B :
Moxifloxacin (4aS,7aR)-Isomer (Base) ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aR)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride ;
MXF51H :
Moxifloxacin (4aS,7aR)-Isomer HCl ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aS)-N-nitroso-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
MXF48B :
Moxifloxacin N-Nitroso Impurity ; N-Nitroso Moxifloxacin ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline ;
CAS:1322062-57-6
MXF31B :
Moxifloxacin Decarboxy Analog (Base) ; Decarboxy Moxifloxacin ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline hydrochloride ;
MXF31H :
Moxifloxacin Decarboxy Analog (HCl) ; Decarboxy Moxifloxacin HCl ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:151096-09-2
MXF00B :
Moxifloxacin (Base) ; (4aS,7aS)-Moxifloxacin ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride ;
CAS:186826-86-8
MXF00H :
Moxifloxacin (HCl) ; (4aS,7aS)-Moxifloxacin HCl ;

1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride monohydrate ;
CAS:192927-63-2
MXF00X :
Moxifloxacin (HCl Monohydrate) ; (4aS,7aS)-Moxifloxacin HCl Monohydrate ;

1-Cyclopropyl-7-((3S,5R)-3,5-dimethylpiperazin-1-yl)-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:126457-99-6
SFX64 :
Sparfloxacin RC 4 ; Orbifloxacin EP Impurity C ; 5-Desfluoro Orbifloxacin ; 5-Desamino Sparfloxacin ;

1-Cyclopropyl-7-(3,5-dimethylpiperazin-1-yl)-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:103460-90-8
SFX63 :
Sparfloxacin RC 3 ;

1-Cyclopropyl-7-[(3R,5S)-3,5-dimethylpiperazin-1-yl]-5,6,8-trifluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:113617-63-3
OBX00 :
Orbifloxacin ;

1-Cyclopropyl-7-[(3R,5S)-3,5-dimethylpiperazin-1-yl]-5,6,8-trifluoroquinolin-4(1H)-one ;
CAS:166323-26-8
OBX07 :
Orbifloxacin EP Impurity G ; Descarboxyl Orbifloxacin ;

1-Cyclopropyl-7-[(3R,5S)-3,5-dimethylpiperazin-1-yl]-6,8-difluoro-5-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:126458-22-8
OBX04 :
Orbifloxacin EP Impurity D ; Orbifloxacin 5-Hydroxy Analog ;

1-Cyclopropyl-7-[(3R,5S)3,5-dimethylpiperazin-1-yl]-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:126457-99-6
OBX03 :
Orbifloxacin EP Impurity C ; 5-Desfluoro Orbifloxacin ; 5-Desamino Sparfloxacin ; Sparfloxacin RC 4 ;

1-Cyclopropyl-8-ethoxy-6-fluoro-7-[(4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:1029364-75-7
MXF03B :
Moxifloxacin EP Impurity C (Base) ; Moxifloxacin USP RC C ; Moxifloxacin Ethyl Analog ;

1-Cyclopropyl-8-ethoxy-6-fluoro-7-[(4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid HCl ;
MXF03H :
Moxifloxacin EP Impurity C (HCl) ; Moxifloxacin USP RC C ; Moxifloxacin HCl Ethyl Analog ;

1-Cyclopropyl-8-fluoro-6-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:1029364-77-9
MXF04B :
Moxifloxacin EP Impurity D (Base) ; Moxifloxacin USP RC D ; Moxifloxacin Isomer ; 8-Fluoro-6-Methoxy Moxifloxacin ;

1-Cyclopropyl-8-fluoro-6-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride ;
MXF04H :
Moxifloxacin EP Impurity D (HCl) ; Moxifloxacin USP RC D ; Moxifloxacin HCl Isomer ; 8-Fluoro-6-Methoxy Moxifloxacin HCl ;

1-Cyclopropyl-8-methyl-7-(5-methyl-6-(methylamino)pyridin-3-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:245765-41-7
OZX00 :
Ozenoxacin ;

1-Deoxy-1-(3,4-dihydro-7,8-dimethyl-2,4-dioxopyrimido[4,5-b]quinolin-10(2H)-yl)-D-ribitol 2,3,4,5-tetraacetate ;
CAS:59389-72-9
RBF75 :
Riboflavin RC 15 ;

1-Deoxy-1-[(3,4-dimethylphenyl)(1,2,3,6-tetrahydro-2,6-dioxo-4-pyrimidinyl)amino]-D-ribitol 2,3,4,5-tetraacetate ;
CAS:59389-71-8
RBF67 :
Riboflavin RC 7 ;

1-Deoxy-1-[[2-[(ethoxycarbonyl)amino]-5-[[(4-fluorophenyl)methyl]amino]phenyl]amino] +¦-D-glucopyranuronic acid ;
CAS:191873-41-3
RGB53A :
Retigabine N-+¦-D-Glucuronide (Acid) ;

1-Deoxy-1-[[2-[(ethoxycarbonyl)amino]-5-[[(4-fluorophenyl)methyl]amino]phenyl]amino] +¦-D-glucopyranuronic acid sodium salt ;
RGB53N :
Retigabine N-+¦-D-Glucuronide Sodium Salt ;

1-Deoxy-1-[[4-[2-[[4-[2-[[(2R)-2-hydroxy-2-phenylethyl]amino]ethyl]phenyl]amino]-2-oxoethyl]-2-thiazolyl]amino]-+¦-D-glucopyranuronic acid ;
CAS:1365244-68-3
MRB60B :
Mirabegron N-Glucuronide ;

1-Deoxy-1-[4,5-dimethyl-2-(phenylazo)phenylamino]-D-ribitol ;
CAS:21037-26-3
RBF76 :
Riboflavin RC 16 ;

1-Dodecylimidazolidine-2,4-dione ;
CAS:85391-28-2
HDT57 :
Hydantoin 1-Dodecyl ;

1-Ethoxy-4-(trifluoromethyl)benzene ;
CAS:2366-92-9
TFM64 :
Teriflunomide RC 4 ;

1-Ethyl-4-isobutylbenzene ;
CAS:100319-40-2
IBP65 :
Ibuprofen Impurity 5 ;

1-Ethyl-4-oxo-6,7-bis(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:177554-64-2
NFX03 :
Norfloxacin EP Impurity C ; Norfloxacin Dipiperazine Impurity ;

1-Ethyl-6,7,8-trifluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:75338-42-0
LMX57 :
Lomefloxacin 7-Fluoro Impurity ;

1-Ethyl-6,8-difluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:99726-76-8
LMX53 :
Lomefloxacin 3-Desmethyl Impurity ; 8-Fluoro Norfloxacin ;

1-Ethyl-6,8-difluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:98079-51-7
LMX00B :
Lomefloxacin (Base) ;

1-Ethyl-6,8-difluoro-7-(3-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid hydrochloride ;
CAS:98079-52-8
LMX00H :
Lomefloxacin HCl ;

1-Ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(3-oxo-1-piperazinyl)-3-quinolinecarboxylic acid ;
CAS:74011-42-0
NFX53 :
Norfloxacin 3-Oxo Impurity ;

1-Ethyl-6-fluoro-1,4-dihydro-7-(4-hydroxy-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid ;
CAS:109142-49-6
NFX50 :
Norfloxacin N-Hydroxy Impurity ;

1-Ethyl-6-fluoro-1,4-dihydro-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid ;
CAS:70458-92-3
NFX51B :
Norfloxacin N-Methyl Impurity ; Pefloxacin ;

1-Ethyl-6-fluoro-1,4-dihydro-7-(4-methyl-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid mesylate ;
CAS:70458-95-6
NFX51M :
Norfloxacin N-Methyl Impurity (Mesylate) ; Pefloxacin Mesylate ;

1-Ethyl-6-fluoro-1,4-dihydro-7-(4-N-nitroso-1-piperazinyl)-4-oxo-3-quinolinecarboxylic acid ;
CAS:74011-53-3
NFX48 :
Norfloxacin N-Nitroso Impurity ;

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:70458-96-7
PFX01 :
Pefloxacin EP Impurity A ; Demethyl Pefloxacin ; Norfloxacin ;

1-Ethyl-6-fluoro-4-oxo-7-(piperazin-1-yl)-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:70458-96-7
NFX00 :
Norfloxacin ; Pefloxacin EP Impurity A ;

1-Ethyl-6-fluoro-5-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
PFX03 :
Pefloxacin EP Impurity C ; Isopefloxacin ;

1-Ethyl-6-fluoro-7-(4-formylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:70459-04-0
NFX07 :
Norfloxacin EP Impurity G ; Norfloxacin N-Formyl Impurity ;

1-Ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid ;
CAS:70458-92-3
PFX00B :
Pefloxacin (Base) ; N-Methyl Norfloxacin ;

1-Ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid methanesulfonate dihydrate ;
CAS:149676-40-4
PFX00M :
Pefloxacin (Mesylate Dihydrate) ; Pefloxacin Mesylate Dihydrate ; N-Methyl Norfloxacin Mesylate Dihydrate ;

1-Ethyl-6-fluoro-7-(4-methylpiperazin-1-yl)quinoline-4(1H)-one ;
CAS:879005-96-6
PFX05 :
Pefloxacin EP Impurity E ; Decarboxyl Pefloxacin ;

1-Ethyl-6-fluoro-7-(piperazin-1-yl)quinolin-4(1H)-one ;
CAS:75001-82-0
NFX04 :
Norfloxacin EP Impurity D ; Norfloxacin Descarboxy Impurity ;

1-Ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid ;
CAS:389-08-2
NDX00 :
Nalidixic Acid ;

1-Ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid ethyl ester ;
CAS:33331-59-8
NDX52 :
Nalidixic Acid Ethyl Ester ;

1-Ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid isopropyl ester ;
NDX53 :
Nalidixic Acid Isopropyl Ester ;

1-Ethyl-7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylic acid methyl ester ;
CAS:63475-29-6
NDX51 :
Nalidixic Acid Methyl Ester ;

1-Ethylpiperazine-2,3-dione ;
CAS:59702-31-7
PPR05 :
Piperacillin EP Impurity E ; Piperacillin USP RC E ;

1-Fluoro-5,8-dihydroxy-4-(2-(2-hydroxyethylamino)ethylamino)anthracene-9,10-dione ;
CAS:1195810-93-5
MXT61 :
Mitoxantrone RC 1 ;

1-GÇï(4-GÇïPyridinyl)GÇï-2-butanone ;
CAS:6304-20-7
MLR59 :
Milrinone RC 9 ;

1-GÇï[2-GÇï(Methylsulfonyl)GÇï-GÇï5-GÇïoxido-GÇï10H-GÇïphenothiazin-GÇï10-GÇïyl]GÇï-ethanone ;
CAS:2095609-60-0
MPZ62 :
Metopimazine RC 2 ;

1-Hydrazino-3-(methylthio)propan-2-ol ; 1-Hydrazinyl-3-(methylthio)propan-2-ol ; 1-Hydrazinyl-3-(methylthio)-2-propanol ;
CAS:14359-97-8
NFT53 :
Nifuratel NFT3 Intermediate ; Nifuratel 3-Methylthio Impurity ;

1-Hydrazinyl-2-methylthiopropan-3-ol ;
CAS:2797996-50-8
NFT50 :
Nifuratel 2-Methylthio Impurity ;

1-Hydrazinylphthalazine ;
CAS:86-54-4
HDL00B :
Hydralazine (Base) ;

1-Hydrazinylphthalazine hydrochloride ;
CAS:304-20-1
HDL00H :
Hydralazine (HCl) ; Hydralazine Hydrochloride ;

1-Hydroxy-2,1-benzoxaborolane ;
CAS:5735-41-1
TVB22 :
Tavaborole USP RC B ; Desfluoro Tavaborole ;

1-Hydroxy-2-[1-(2-hydroxy-2,2-diphosphonoethyl)-1H-imidazol-3-ium-3-yl]-1-phosphonoethylphosphonate ;
CAS:1627731-61-6
ZLD22A :
Zoledronic Acid USP RC B (Acid) ; Zoledronic Acid EP Impurity B ;

1-Hydroxy-2-[1-(2-hydroxy-2,2-diphosphonoethyl)-1H-imidazol-3-ium-3-yl]-1-phosphonoethylphosphonate sodium salt (1/7);
CAS:1632236-60-2
ZLD22N :
Zoledronic Acid USP RC B (Na) ; Zoledronic Acid EP Impurity B ;

1-Hydroxy-3-(2-methoxyphenoxy)propan-2-yl carbamate ;
CAS:10488-39-8
MTC63 :
Methocarbamol Impurity 3 ; Isomethocarbamol ;

1-Hydroxy-4-[2-hydroxy-5-(1-hydroxy-2-{[6-(4-phenylbutoxy)hexyl]amino} ethyl)benzyl]-2-naphthoic acid ;
CAS:1330076-52-2
SAL28B :
Salmeterol USP RC H ; Salmeterol Xinafoate Adduct Impurity ;

1-Hydroxynaphthalene-2-carboxylic acid ;
CAS:86-48-6
SAL40A :
Salmeterol Hydroxynaphthoic Impurity (USP) ; Xinafoic Acid ;

1-Isobutyl-1H-imidazo[4,5-c]quinolin-4-amine ;
CAS:99011-02-6
IQM00B :
Imiquimod ;

1-Isobutyl-1H-imidazo[4,5-c]quinolin-4-ol ;
CAS:99010-99-8
IQM66 :
Imiquimod Impurity 6 ;

1-Isobutyl-1H-imidazo[4,5-c]quinoline ;
CAS:99010-24-9
IQM21 :
Imiquimod USP RC A ; Desamino Imiquimod ;

1-Isobutyl-1H-imidazo[4,5-c]quinoline N-oxide ;
CAS:99010-63-6
IQM22 :
Imiquimod USP RC B ; Desamino Imiquimod N-Oxide ;

1-Isobutyl-1H-imidazo[4,5-c]quinoline-4-carboxamide ;
IQM64 :
Imiquimod Impurity 4 ;

1-Isobutyl-N-methyl-1H-imidazo[4,5-c]quinolin-4-amine ;
CAS:853793-02-9
IQM65 :
Imiquimod Impurity 5 ;

1-Isopropyl-3-(4-(nitroso(m-tolyl)amino)pyridin-3-ylsulfonyl)urea ;
TSM48 :
Torsemide N-Nitroso Impurity ;

1-Isopropyl-6-methoxyindoline-3,5-diol ;
IPL55 :
Isoprenaline Impurity 5 ;

1-Isopropylindoline-3,5,6-triol ;
CAS:98496-30-1
IPL52 :
Isoprenaline Impurity 2 ;

1-Methyl biguanide ;
CAS:1609-00-3
MTF05B :
Metformin EP Impurity E (Base) ; Metformin USP RC B ; N-Desmethyl Metformin ;

1-Methyl biguanide hemisulfate monohydrate ;
CAS:36801-25-9
MTF05S :
Metformin EP Impurity E (Sulfate) ; Metformin USP RC B (Sulfate) ; N-Desmethyl Metformin Hemisulfate Monohydrate ;

1-Methyl biguanide hydrochloride ;
CAS:1674-62-0
MTF05H :
Metformin EP Impurity E (HCl) ; Metformin USP RC B (HCl) ; N-Desmethyl Metformin HCl ;

1-Methyl-1,3-dihydro-2H-imidazole-2-thione ;
CAS:60-56-0
THZ00 :
Thiamazole ; Carbimazole EP Impurity A ; Methimazole ;

1-Methyl-1,3-dihydro-2H-imidazole-2-thione ;
CAS:60-56-0
MZL00 :
Methimazole ; Carbimazole EP Impurity A ; Thiamazole ;

1-Methyl-1,4-bis[4-[(4-methyl-3-[[4-(pyridin-3-yl)pyrimidin-2-yl]amino] phenyl)carbamoyl]benzyl]piperazin-1-ium chloride ;
CAS:1821122-73-9
IMT04 :
Imatinib EP Impurity D ;

1-Methyl-1-(methyl-4-[5-[2-[(methylamino)sulfonyl]ethyl]-1H-indol-3-yl]piperidinium iodide ;
NRT71 :
Naratriptan N-Methiodide ;

1-Methyl-1-nitrosourea ;
CAS:684-93-5
NSA59 :
N-Nitrosomethylurea ;

1-Methyl-12-thioxopyrido[1,2,3,4]imidazole-[1,2-a]benzimidazole-2(12H)-one ;
CAS:1246819-06-6
LSP60 :
Lansoprazole Thioxo Impurity ;

1-Methyl-1H-imidazole ;
CAS:616-47-7
THZ02 :
Thiamazole EP Impuriy B ;

1-Methyl-1H-indazole-3-carboxylic acid ;
CAS:50890-83-0
GST04 :
Granisetron EP Impurity D ; Granisetron USP RC D ; 1-Methylindazole-3-carboxylic Acid ;

1-Methyl-1H-indazole-3-carboxylic anhydride ;
CAS:1363173-34-5
GST09 :
Granisetron EP Impurity I ;

1-Methyl-2-(methylsulfanyl)-1H-imidazole ;
CAS:14486-52-3
THZ03 :
Thiamazole EP Impuriy C ; Thiamazole USP RC C ;

1-Methyl-2-(methylthio)-1H-imidazole ;
CAS:14486-52-3
MZL23 :
Methimazole USP RC C ;

1-Methyl-2-(phenyl(phenyl(m-tolyl)methoxy)methyl)benzene ;
CAS:40673-52-7
OPD55 :
Orphenadrine Dimer ;

1-Methyl-2-[(E)-2-(thiophen-2-yl)eth-1-en-1-yl]-1,4,5,6-tetrahydropyrimidine ;
CAS:15686-83-6
PTL00B :
Pyrantel ;

1-Methyl-2-[(E)-2-(thiophen-2-yl)eth-1-en-1-yl]-1,4,5,6-tetrahydropyrimidine hydrogen 4,4'-methylenebis(3-hydroxynaphthalene-2-carboxylate) ;
CAS:22204-24-6
PTL00E :
Pyrantel Embonate ; Pyrantel Pamoate ;

1-Methyl-2-[(Z)-2-(thiophen-2-yl)eth-1-en-1-yl]-1,4,5,6-tetrahydropyrimidine ;
CAS:36700-38-6
PTL01B :
Pyrantel EP Impurity A (Base) ; Pyrantel RC A ; (Z)-Pyrantel ;

1-Methyl-2-[(Z)-2-(thiophen-2-yl)eth-1-en-1-yl]-1,4,5,6-tetrahydropyrimidine hydrogen 4,4'-methylenebis(3-hydroxynaphthalene-2-carboxylate) ;
PTL01E :
Pyrantel EP Impurity A (Embonate) ; Pyrantel RC A ; (Z)-Pyrantel Embonate ; (Z)-Pyrantel Pamoate ;

1-Methyl-2-oxocyclopentanecarboxylic acid ;
LXP69A :
Loxoprofen Impurity 9 ;

1-Methyl-3-(4-phenoxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine ;
CAS:2213398-75-3
IBT70 :
Ibrutinib Impurity 20 ;

1-Methyl-3-phenoxybenzene ; 3-Phenoxytoluene ;
CAS:3586-14-9
PMR01 :
Permethrin EP Impurity A ;

1-Methyl-3-phenylpiperazine;
CAS:5271-27-2
MTZ61 :
Mirtazapine Impurity 1 ;

1-Methyl-3-propyl-1H-pyrazole-5-carboxylic acid ;
CAS:139755-99-0
SDFD7 :
Sildenafil RC 47 ;

1-Methyl-4-(2,3,4-trimethoxybenzyl)piperazine ;
CAS:93152-26-2
TMD09B :
Trimetazidine EP Impurity I (Base) ; N-Methyl Trimetazidine ;

1-Methyl-4-(2,3,4-trimethoxybenzyl)piperazine dihydrochloride ;
CAS:53960-20-6
TMD09H :
Trimetazidine EP Impurity I (2HCl) ; N-Methyl Trimetazidine Dihydrochloride ;

1-Methyl-4-(2-propoxybenzamido)-3-propyl-1H-pyrazole-5-carboxamide ;
CAS:139756-04-0
SDF51 :
Sildenafil RC 1 ;

1-Methyl-4-(4-(4-methyl-3-(4-(pyridin-3-yl)pyrimidin -2-ylamino)phenyl carbamoyl)benzyl)piperazine-1-oxide ;
CAS:571186-91-9
IMT10 :
Imatinib EP Impurity J ; Imatinib Piperidine-N1-Oxide ;

1-Methyl-4-(4-(4-methyl-3-(4-(pyridin-3-yl)pyrimidin -2-ylamino)phenyl carbamoyl)benzyl)piperazine-4-oxide ;
CAS:938082-57-6
IMT73 :
Imatinib Piperazine-N4-Oxide ;

1-Methyl-4-[[5-[[[2-(1-methyl-2-pyrrolidinyl)ethyl]amino]sulfonyl]-2-propoxybenzoyl]amino]-3-propyl-1H-pyrazole-5-carboxamide ;
CAS:382592-28-1
UDF51 :
Udenafil Diamide Impurity ;

1-Methyl-4-[5-(2-methylsulfamoylethyl)-1H-indol-3-yl]pyridinium chloride ;
NRT73 :
Naratriptan Pyridinium Chloride ;

1-Methyl-4-nitro-3-propyl-1H-pyrazole-5-carboxamide ;
CAS:139756-01-7
SDFD6 :
Sildenafil RC 46 ;

1-Methyl-4-nitro-3-propyl-1H-pyrazole-5-carboxylic acid ;
CAS:139756-00-6
SDFD5 :
Sildenafil RC 45 ;

1-Methyl-4-nitrobenzene ;
CAS:99-99-0
PZP93 :
Pazopanib Impurity 43 ; 4-Nitrotoluene ;

1-Methyl-4-nitrosopiperazine ;
CAS:16339-07-4
NSA64 :
N-Nitroso N-Methylpiperazine ; MNP ;

1-Methyl-4-nitrosopiperazine ;
IMT65
Imatinib RC 15 ;

1-Methyl-4-oxo-7-piperazin-1-yl-1H-[1,3]thiazeto[3,2-a]quinoline-3-carboxylic acid ;
UFX44 :
Ulifloxacin Desfluoro Impurity ;

1-Methyl-4-piperidyl diphenyl chloroacetate ;
CAS:54556-99-9
PPV53B :
Propiverine Chloro Impurity ;

1-Methyl-4-piperidyl diphenyl hydroxyacetate ;
PPV54B :
Propiverine O-Despropyl Impurity ;

1-Methyl-4-piperidyl diphenylpropoxyacetate ;
CAS:60569-19-9
PPV00B :
Propiverine (Base) ;

1-Methyl-4-piperidyl diphenylpropoxyacetate hydrochloride ;
CAS:54556-98-8
PPV00H :
Propiverine (HCl) ;

1-Methyl-5-(2-propoxyphenyl)-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione ;
CAS:479074-08-3
SDFA8 :
Sildenafil RC 18 ;

1-Methyl-5-(4-methylbenzoyl)-1H-pyrrole-2-acetic acid ;
CAS:26171-23-3
TMT00A :
Tolmetin (Acid) ;

1-Methyl-5-(4-methylbenzoyl)-1H-pyrrole-2-acetic acid sodium salt ;
CAS:35711-34-3
TMT00X :
Tolmetin Sodium (Anhydrous) ;

1-Methyl-5-(4-methylbenzoyl)-1H-pyrrole-2-acetic acid sodium salt dihydrate ;
CAS:64490-92-2
TMT00N :
Tolmetin Sodium (Dihydrate) ;

1-Methyl-5-(5-(4-methylpiperazin-1-ylsulfonyl)-2-propoxyphenyl)-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one ;
CAS:877777-10-1
SDF55 :
Sildenafil RC 5 ; O-Desethyl O-Propyl Sildenafil ;

1-Methyl-5-(5-(4-methylpiperazin-1-ylsulfonyl)-2-propoxyphenyl)-3-propyl-1H-pyrazolo[4,3-d]pyrimidine-7(6H)-thione ;
CAS:479073-87-5
SDFE6 :
Sildenafil RC 56 ;

1-Methyl-N-[(1R,3R,5S)-9-methyl-9-azabicyclo[3.3.1]non-3-yl]-1H-indazole-3-carboxamide hydrochloride ;
CAS:107007-99-8
GST00H :
Granisetron HCl ;

1-Methylethyl (1,1-dioxido-3-oxo-1,2-benzisothiazol-2(3H)-yl)acetate ;
CAS:76508-37-7
PXC06 :
Piroxicam EP Impurity F ;

1-Methylethyl (4RS)-4-(2,1,3-benzoxadiazol-4-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate ;
CAS:88977-30-4
ISR54 :
Isradipine O-Desmethyl Impurity ;

1-Methylethyl (8S)-7-[(2S)-2-[[(1S)-1-(ethoxycarbonyl)-3-phenylpropyl]amino]propanoyl]-1,4-dithia-7-azaspiro[4.4]nonane-8-carboxylate ;
SPP04 :
Spirapril EP Impurity D ;

1-Methylethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide ;
CAS:118854-48-1
PXC12 :
Piroxicam EP Impurity L ; Meloxicam EP Impurity F ; Meloxicam USP RC C ;

1-Methylethyl 4-hydroxy-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide ;
CAS:76508-35-5
PXC09 :
Piroxicam EP Impurity I ;

1-Methylethyl 4-hydroxy-3,5-bis(1-methylethyl)benzoate ;
CAS:2095678-97-8
PPF16 :
Propofol EP Impurity P ;

1-Methylethyl propyl (5RS)-5-{[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethoxy]methyl}-5-oxo-2,4,6,8-tetraoxa-5-++5-phosphanonanedioate ;
CAS:1217542-13-6
TNF78B :
Tenofovir Disoproxil IP Impurity H (Base) ; Tenofovir Disoproxil Fumarate USP RC K ; nPOC-POC Tenofovir ;

1-Methylethyl propyl (5RS)-5-{[(1R)-2-(6-amino-9H-purin-9-yl)-1-methylethoxy]methyl}-5-oxo-2,4,6,8-tetraoxa-5-++5-phosphanonanedioate fumarate ;
TNF78F :
Tenofovir Disoproxil IP Impurity H (Fumarate) ; Tenofovir Disoproxil Fumarate USP RC K ; nPOC-POC Tenofovir Fumarate ;

1-Methylpiperazine ;
CAS:109-01-3
PZN04B :
Pirenzepine EP Impurity D (Base) ; Diethylcarbamazine EP Impurity A ; Imatinib EP Impurity G ; Chlorcyclizine EP Impurity A ; Cyclizine EP Impurity A ;

1-Methylpiperazine ;
CAS:109-01-3
IMT07B :
Imatinib EP Impurity G (Base) ; Chlorcyclizine EP Impurity A ; Cyclizine EP Impurity A ; Pirenzepine EP Impurity D ; Diethylcarbamazine EP Impurity A ;

1-Methylpiperazine dihydrochloride ;
CAS:34352-59-5
PZN04H :
Pirenzepine EP Impurity D (2HCl) ; Diethylcarbamazine EP Impurity A (2HCl) ; Imatinib EP Impurity G (2HCl) ; Chlorcyclizine EP Impurity A (2HCl) ; Cyclizine EP Impurity A (2HCl) ;

1-Methylpiperazine dihydrochloride ;
CAS:34352-59-5
IMT07H :
Imatinib EP Impurity G (2HCl) ; Chlorcyclizine EP Impurity A (2HCl) ; Cyclizine EP Impurity A (2HCl) ; Pirenzepine EP Impurity D (2HCl) ; Diethylcarbamazine EP Impurity A (2HCl) ;

1-Methylpyrimidine-2,4,6(1H,3H,5H)-trione ;
CAS:2565-47-1
TLG61 :
Trelagliptin RC 1 ;

1-Methylpyrrolidin-3-yl-2-cyclopentyl-2-hydroxy-2-phenylacetate ;
CAS:13118-11-1
GPB07 :
Glycopyrrolate EP Impurity G ; Glycopyrrolate USP RC B ;

1-Nitrosopiperazine ;
CAS:5632-47-3
NSA61 :
N-Nitrosopiperazine ;

1-Nitrosopiperidine ;
CAS:100-75-4
NSA58 :
N-Nitrosopiperidine ; NPIP ;

1-Nitrosopyrrolidin-2-one ;
CAS:54634-49-0
NSA67 :
N-Nitroso Pyrrolidinone ;

1-Nitrosopyrrolidine ;
CAS:930-55-2
NSA66 :
N-Nitroso Pyrrolidine ; N-Nitrosopyrrolidine ; NPYR ; NPYRN ;

1-O-[(Aminocarbonyl)(1-benzo[b]thien-2-ylethyl)amino]-+¦-D-glucopyranuronic Acid ;
CAS:141056-63-5
ZLT50 :
Zileuton beta-D-Glucuronide ;

1-O-[[1,8-Dioxo-8-(phenylamino)octyl]amino]-+¦-D-glucopyranuronic acid ;
CAS:863456-50-2
VRS50A :
Vorinostat +¦-D-Glucuronide (Acid) ;

1-O-[[1,8-Dioxo-8-(phenylamino)octyl]amino]-+¦-D-glucopyranuronic acid sodium salt ;
VRS50N :
Vorinostat +¦-D-Glucuronide Sodium Salt ;

1-O-[[6-(Trifluoromethoxy)-2-benzothiazolyl]amino]-+¦-D-glucopyranuronic Acid ;
CAS:1394929-56-6
RLZ58 :
Riluzole N-Hydroxy O-+¦-D-Glucuronide ;

1-O-[4-[2-[(2,4-Dimethylphenyl)thio]phenyl]-1-piperazinyl]-+¦-D-glucopyranuronic acid sodium salt ;
VXT82N :
Vortioxetine Glucuronide Sodium Salt ;

1-Oxa-4-azacyclohexane ;
CAS:110-91-8
MSD05B :
Molsidomine EP Impurity E ; Morpholine ;

1-Oxa-4-azacyclohexane HCl ;
CAS:10024-89-2
MSD05H :
Molsidomine EP Impurity E (HCl) ; Morpholine (HCl) ;

1-Oxide 3-Pyridinecarboxamide ;
CAS:1986-81-8
NCT05 :
Nicotinamide EP Impurity E ; Nicotinamide N-Oxide ;

1-Pentanoylamino-cyclopentanecarboxylic acid [2'-(1H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-amide ;
CAS:748812-53-5
IST01 :
Irbesartan EP Impurity A ; Irbesartan USP RC A ;

1-Phenyl-1,2,3,4-tetrahydroisoquinoline ;
CAS:22990-19-8
SLF51B :
Solifenacin Phenyl Tetrahydroisoquinoline Racemate ;

1-Phenyl-1,3,8-triazaspiro[4.5]decan-4-one ;
CAS:1021-25-6
FLS62 :
Fluspirilene RC 2 ;

1-Phenyl-3,4-dihydroisoquinoline ;
CAS:52250-50-7
SLF63B :
Solifenacin Impurity 3 (Base) ;

1-Phenyl-3,4-dihydroisoquinoline hydrochloride ;
CAS:52250-51-8
SLF63H :
Solifenacin Impurity 3 (HCl) ;

1-Phenylbut-3-en-1-ol ;
CAS:936-58-3
PRP65 :
Propafenone RC 5 ;

1-Phenylcyclopentanecarboxylic acid ;
CAS:77-55-4
PVR01 :
Pentoxyverine EP Impurity A ;

1-Phenylpiperazine ;
CAS:92-54-6
LDZ02B :
Levodropropizine EP Impurity B (Base) ;

1-Phenylpiperazine dihydrochloride ;
CAS:4004-95-9
LDZ02H :
Levodropropizine EP Impurity B (2HCl) ;

1-Phenylpiperazine hydrochloride ;
CAS:2210-93-7
LDZ02X :
Levodropropizine EP Impurity B (HCl) ;

1-Phenylpyridin-2(1H)-one ;
CAS:13131-02-7
PFD55 :
Pirfenidone Desmethyl ;

1-Propyl-1H-imidazo[4,5-c]quinolin-4-amine ;
CAS:853792-81-1
IQM24 :
Imiquimod USP RC D ;

10+¦-Hydroxy-17+¦-hydroxy-17+¦-ethynylestr-4-en-3-one ;
CAS:1236-00-6
NED60 :
Norethindrone 10beta-Hydroxy Impurity ;

10,10GÇ¦-[Piperazine-1,4-diylbis(propane-3,1-diyl)]bis[2-(trifluoromethyl)-10H-phenothiazine] ;
CAS:2376-89-8
FPH04B :
Fluphenazine Dihydrochloride EP Impurity D ;

10,11-Dihydro-5H-dibenzo[a,d][7]annulen-5-ol ;
CAS:1210-34-0
NTL09 :
Nortriptyline EP Impurity I ; Dibenzosuberol ; Amitriptyline EP Impurity G ; Deptropine EP Impurity C ;

10,11-dihydro-5H-dibenzo[a,d][7]annulen-5-one ;
CAS:1210-35-1
NTL01 :
Nortriptyline EP Impurity A ; Dibenzosuberone ; Amitriptyline EP Impurity A ; Amitriptyline USP RC A ; Cyproheptadine EP Impurity B ;

10,11-Dihydro-5H-dibenzo[b,f]azepine ;
CAS:494-19-9
TMP06B :
Trimipramine EP Impurity F ; Trimipramine BP Impurity F ; Clomipramine EP Impurity E ; Carbamazepine EP Impurity E ; Iminodibenzyl ;

10,11-Dihydro-5H-pyrido[2,3-c][2]benzazepine-10-carboxylic acid ethyl ester ;
CAS:1071504-73-8
MTZ66 :
Mirtazapine Impurity 6 ;

10,11-Dihydro-N,N-dimethyl-5H-dibenz[b,f]azepine-5-propanamine N-oxide hydrate ;
CAS:1215681-42-7
IPM50 :
Imipramine N-Oxide ;

10,11-Dihydro-N-(2-hydroxyethyl)-N-methyl-5H-pyrido[2,3-c][2]benzazepine-10-carboxamide ;
CAS:1071504-81-8
MTZ65 :
Mirtazapine Impurity 5 ;

10,11-Dihydro-N-methyl-5H-dibenz[b,f]azepine-5-propanamine HCl ;
CAS:58-28-6
IPM01H :
Imipramine EP Impurity A ; Desipramine HCl ;

10,11-Dioxo-10,11-dihydro-5H-dibenzo[b,f]azepine-5-carboxamide ;
CAS:537693-29-1
OXC09 :
Oxcarbazepine EP Impurity I ; 11-Keto Oxcarbazepine ;

10-(((4S,5S,6R)-5-Hydroxy-6-(hydroxymethyl)-2-phenyl-1,3-dioxan-4-yl)methyl)-7,8-dimethylbenzo[g]pteridine-2,4(3H,10H)-dione ;
RBF73 :
Riboflavin RC 13 ;

10-((2S,3S)-3-(2,2-Dimethyl-1,3-dioxolan-4-yl)-2,3-dihydroxypropyl)-7,8-dimethylbenzo[g]pteridine-2,4(3H,10H)-dione ;
CAS:22854-81-5
RBF70 :
Riboflavin RC 10 ;

10-(1-Methylpiperidin-4-ylidene)-5,10-dihydro-4H-benzo-[5,6]cyclohepta[1,2-b]thiophen-4-one ;
CAS:1346603-71-1
KTT05B :
Ketotifen EP Impurity E ; 4-Oxo Ketotifen ;

10-(2,4,5-Trifluorobenzyl)-3-(trifluoromethyl)-9,10-dihydro-5H-[1,2,4]triazolo[3',4':3,4]pyrazino[1,2-a]pyrimidin-8(6H)-one ;
SGT46B :
Sitagliptin M2 Dehydro Racemate ;

10-(3-(4-Methylpiperazin-1-yl)propyl)-10H-phenothiazin-2-amine ;
CAS:367274-46-2
PCR65B :
Prochlorperazine RC 5 ;

10-(3-(4-Methylpiperazin-1-yl)propyl)-10H-phenothiazine ;
CAS:84-97-9
PCR02B :
Prochlorperazine EP Impurity B (Base) ; Perazine ; Pernazine ; Deschloro Prochlorperazine ;

10-(3-(4-Methylpiperazin-1-yl)propyl)-10H-phenothiazine dihydrochloride ;
CAS:5317-37-3
PCR02H :
Prochlorperazine EP Impurity B (2HCl) ; Perazine (2HCl) ; Pernazine (2HCl) ; Deschloro Prochlorperazine (2HCl) ;

10-(3-(Dimethylamino)propyl)-9,9-dimethyl-8a,9,10,10a-tetrahydroanthracen-10-ol ;
MRC53B :
Melitracen Impurity C ;

10-(4,5-Dimethoxy-2-methyl-3,6-dioxocyclohexa-1,4-dien-1-yl)decoxysulfonyloxy potassium ;
IBN50K :
Idebenone Sulfate Potassium Salt ;

10-(4-Methylpiperazin-1-yl)-7-oxo-3,7-dihydro-2H-[1,4]thiazino[2,3,4-ij]quinoline-6-carboxylic acid ;
RXN69 :
Rufloxacin 9-Desfluoro Impurity ;

10-(Prop-2-ynyl)-10H-phenothiazine ;
CAS:4282-78-4
PMZ54 :
Promethazine N-Propargyl Phenothiazine ;

10-[(2R)-3-(Dimethylamino)-2-methylpropyl]-2-methoxy-10H-phenothiazine 5,5-dioxide hydrochloride ;
CAS:60119-90-6
LMM50H :
Levomepromazine Sulfone HCl ;

10-[(2R)-3-(Dimethylamino)-2-methylpropyl]-2-methoxy-10H-phenothiazine 5-oxide ;
CAS:7606-29-3
LMM02 :
Levomepromazine EP Impurity B ; Levomepromazine Sulfoxide ;

10-[[(10-Oxo-10,11-dihydro-5H-dibenzo[b,f]azepin-5-yl)carbonyl]amino]-5H-dibenzo[b,f]azepine-5-carboxamide ;
OXC13 :
Oxcarbazepine EP Impurity M ; Oxcarbazepine USP RC D ; Oxcarbazepine Dimer ;

10-[2-(Dimethylamino)propyl]-5,5-dioxidephenothiazine ;
CAS:13754-56-8
PMZ51 :
Promethazine Sulfone ;

10-[2-[(2RS)-1-Methylpiperidin-2-yl]ethyl]-2-(methylsulfanyl)-10H-phenothiazine ;
CAS:50-52-2
TRD00B :
Thioridazine ;

10-[2-[(2RS)-1-Methylpiperidin-2-yl]ethyl]-2-(methylsulfanyl)-10H-phenothiazine 5-oxide ;
CAS:7776-05-08 00:00:00
TRD03 :
Thioridazine EP Impurity C ; Thioridazine 5-Sulfoxide ;

10-[2-[(2RS)-1-Methylpiperidin-2-yl]ethyl]-2-(methylsulfanyl)-10H-phenothiazine HCl ;
CAS:130-61-0
TRD00H :
Thioridazine HCl ;

10-[2-[(2RS)-1-Methylpiperidin-2-yl]ethyl]-2-(methylsulfinyl)-10H-phenothiazine ;
CAS:5588-33-0
TRD02 :
Thioridazine EP Impurity B ; Thioridazine 2-Sulfoxide ; Mesoridazine ;

10-[2-[(2RS)-1-Methylpiperidin-2-yl]ethyl]-2-(methylsulfinyl)-10H-phenothiazine 5-oxide ;
CAS:53926-89-9
TRD04 :
Thioridazine EP Impurity D ; Thioridazine 2,5-DiSulfoxide ;

10-[2-[(2RS)-1-Methylpiperidin-2-yl]ethyl]-2-(methylsulfonyl)-10H-phenothiazine ;
CAS:14759-06-9
TRD05 :
Thioridazine EP Impurity E ; Thioridazine 2-Sulfone ; Sulforidazine ;

10-[2-[(2RS)-1-Methylpiperidin-2-yl]ethyl]-2-(methylsulfonyl)-10H-phenothiazine 5,5-dioxide ;
CAS:100574-22-9
TRD01 :
Thioridazine EP Impurity A ; Thioridazine 2,5-DiSulfone ; Sulforidazine ;

10-[3-(1-Piperazinyl)propyl]-2-(trifluoromethyl)-10H-phenothiazine ;
CAS:2804-16-2
TFP50B :
Trifluoperazine N-Desmethyl Impurity (Base) ; N-Deshydroxyethyl Fluphenazine ; N-Des-Ethanol Fluphenazine ;

10-[3-(1-Piperazinyl)propyl]-2-(trifluoromethyl)-10H-phenothiazine ;
CAS:2804-16-2
FPH50B :
Fluphenazine N-Deshydroxyethyl Impurity (Base) ; N-Des-Ethanol Fluphenazine ; N-Desmethyl Trifluoperazine ;

10-[3-(1-Piperazinyl)propyl]-2-(trifluoromethyl)-10H-phenothiazine dihydrochloride ;
CAS:4617-82-7
TFP50H :
Trifluoperazine N-Desmethyl Impurity (2HCl) ; N-Deshydroxyethyl Fluphenazine Dihydrochloride ;

10-[3-(1-Piperazinyl)propyl]-2-(trifluoromethyl)-10H-phenothiazine dihydrochloride ;
CAS:4617-82-7
FPH50H :
Fluphenazine N-Deshydroxyethyl Impurity (2HCl) ; N-Desmethyl Trifluoperazine Dihydrochloride ;

10-[3-(4-Methylpiperazin-1-yl)propyl]-2-(trin¼éuoromethyl)-10H-phenothiazine dihydrochloride ;
CAS:440-17-5
TFP00H :
Trifluoperazine (2HCl) ; Trifluoperazine Dihydrochloride ;

10-[3-(Dimethylamino)propyl]acridin-9(10H)-one HCl ;
CAS:2307-88-2
IPM03H :
Imipramine EP Impurity C ;

10-Allyl-2-(methylsulfonyl)-10H-phenothiazine ;
CAS:1391053-21-6
MPZ63B :
Metopimazine RC 3 ;

10-Allyl-2-chloro-10H-phenothiazine ;
CAS:63615-79-2
PPZ50 :
Perphenazine 10-Allyl 2-Chloro Phenothiazine ;

10-Azaanthracene ;
CAS:260-94-6
OXC53B :
Oxcarbazepine Acridine Impurity (Base) ; Acridine ;

10-Azaanthracene HCl ;
CAS:17784-47-3
OXC53H :
Oxcarbazepine Acridine Impurity (HCl) ; Acridine HCl ;

10-Azatricyclo[6.3.1.02,7]dodeca-2,4,6-trien-4-ylamine ;
CAS:357424-22-7
VCT75B :
Varenicline RC 5 (Base) ;

10-Deacetyl-7-xylosyl paclitaxel ;
CAS:90332-63-1
PCX64 :
Paclitaxel RC 4 ; 10-Deacetyl 7-Cylosyl Paclitaxel ;

10-Ethyl-2-methyl-3-propionyl-8-[(4-piperidinopiperidino) carbonyloxy] indolizino [1,2-b] quinoline-1-(11H)-one ;
ITC28 :
Irinotecan Keto Impurity ;

10-Ethyl-2-methyl-3-propionyl-8-hydroxy-indolizino [1,2-b] quinoline-1-(11H)-one ;
CAS:157770-58-6
ITC38 :
Irinotecan Hydroxy Keto Impurity ;

10-Hydroxy-9-[(dimethylamino)methyl]-5-ethoxy-(20S,5RS)-camptothecin ;
CAS:504413-76-7
TTC51 :
Topotecan 5-Ethoxy Impurity ;

10-Hydroxy-9-[(dimethylamino)methyl]-5-hydroxy-(20S,5RS)-camptothecin dihydrochloride ;
CAS:504413-73-4
TTC35H :
Topotecan 5-Hydroxy Impurity (2HCl) ;

10-Methoxy-5H-dibenzo[b,f]azepine ;
CAS:4698-11-07 00:00:00
OXC08 :
Oxcarbazepine EP Impurity H ; 10-Methoxy Iminostilbene ;

10-Methoxy-5H-dibenzo[b,f]azepine-5-carbonylchloride
CAS:28721-08-6
OXC06 :
Oxcarbazepine EP Impurity F ;

10-Methoxy-5H-dibenzo[b,f]azepine-5-carboxamide ;
CAS:28721-09-7
OXC02 :
Oxcarbazepine EP Impurity B ; 10-Methoxycarbamazepine ;

10-Methyl-10H-phenothiazine ;
CAS:1207-72-3
PMZ52 :
Promethazine N-Methyl Phenothiazine ;

10-O-[(2R,3S)-3-(Benzoylamino)-2-hydroxy-3-phenylpropanoyl]-10-O-deacetyl paclitaxel ;
CAS:2157462-42-3
PCX09 :
Paclitaxel EP Impurity I ;

10-O-Deacetyl-10-O-(3-oxobutanoyl)paclitaxel ;
PCX10 :
Paclitaxel EP Impurity J ; 10-Acetoacetyl Paclitaxel ;

10-O-Deacetyl-7-epi-paclitaxel ;
CAS:78454-17-8
PCX08 :
Paclitaxel EP Impurity H ; Paclitaxel USP RC B ; 7-Epi 10-Desacetyl Paclitaxel ;

10-O-Deacetylpaclitaxel ;
CAS:78432-77-6
PCX07 :
Paclitaxel EP Impurity G ; 10-Desacetyl Paclitaxel ;

10-Oxo-10,11-Dihydro-5H-dibenzo[b,f]azepine-5-carboxamide ;
CAS:28721-07-5
OXC00 :
Oxcarbazepine ;

10H-Phenothiazine ;
CAS:92-84-2
PMZ01 :
Promethazine EP Impurity A ; Alimemazine EP Impurity C ; Phenothiazine ;

11+ƒ,17,21-Trihydroxypregna-1,4-diene-3,20-dione ;
CAS:50-24-8
PCB01 :
Prednicarbate EP Impuirty A ; Desonide USP Impurity B ; Prednisolone ; Prednisone EP Impurity B ; Prednisolone Acetate EP Impurity B ; Hydrocortisone EP Impurity A ; Methylprednisolone EP Impurity K ;

11+ƒ,17-Dihydroxy-3,20-dioxopregna-1,4-dien-21-yl ethylcarbonate ;
CAS:2205-88-1
PCB04 :
Prednicarbate EP Impuirty D ; Prednisolone 21-Ethylcarbonate ; Prednisolone 21-Ethoxycarbonyl Impurity ;

11+ƒ,17-Dihydroxy-3,20-dioxopregna-1,4-dien-21-yl propanoate ;
CAS:5740-62-5
PCB03 :
Prednicarbate EP Impuirty C ; Prednicarbate USP RC C ; Prednisolone 21-Propanoate ;

11+ƒ,17-Dihydroxy-6+ƒ-methyl-3,20-dioxopregna-1,4-dien-21-yl acetate ;
CAS:1048031-82-8
MSA10 :
Methylprednisolone Acetate EP Impurity J ; 6+¦-+£ethyl Prednisolone 21-Acetate ;

11+ƒ,17-Dihydroxy-6a-methylpregna-1,4-diene-3,20-dione ;
CAS:6870-94-6
MSA09 :
Methylprednisolone Acetate EP Impurity I ; Methylprednisolone Hydrogen Succinate EP Impurity G ; Deltamedrane ;

11+ƒ,17-Dihydroxy-6a-methylpregna-1,4-diene-3,20-dione ;
CAS:6870-94-6
MHS07 :
Methylprednisolone Hydrogen Succinate EP Impurity G ; Methylprednisolone Acetate EP Impurity I ; Deltamedrane ;

11+ƒ,21-Dihydroxy-3,20-dioxopregna-1,4-dien-17-yl ethylcarbonate ;
CAS:104286-02-4
PCB02 :
Prednicarbate EP Impuirty B ; Prednisolone 17-Ethylcarbonate ; Prednisolone 17-Ethoxycarbonyl Impurity ; Prednicarbate USP RC B ;

11+ƒ-Hydroxy-3,20-dioxopregn-4-ene-17,21-diyl 17-(ethylcarbonate) 21-propanoate ;
CAS:671225-26-6
PCB06 :
Prednicarbate EP Impuirty F ; Prednicarbate USP RC A ; 1,2-Dihydroprednicarbate ;

11+ƒ-Hydroxy-3,20-dioxopregna-1,4-dien-17,21-diyl-21-acetate 17-(ethylcarbonate) ;
CAS:671225-23-3
PCB05 :
Prednicarbate EP Impuirty E ; Prednisolone 21-Acetate 17-Ethylcarbonate ;

11+ƒ-Hydroxy-3,20-dioxopregna-1,4-diene-17,21-diyl-17-(ethylcarbonate) 21-propanoate ;
CAS:73771-04-7
PCB00 :
Prednicarbate ;

11+¦,14+¦,17,21-Tetrahydroxypregna-1,4-diene-3,20-dione ;
CAS:95815-58-0
PNS05 :
Prednisolone EP Impurity E ; 14+¦-Hydroxyprednisolone ;

11+¦,14,17,21-Tetrahydroxypregn-4-ene-3,20-dione ;
CAS:103795-84-2
HCS09 :
Hydrocortisone EP Impurity I ; 14+¦-Hydroxyhydrocortisone ;

11+¦,17+¦,21-Trihydroxy-4-pregnene-3,20-dione 21-acetate ;
CAS:50-03-3
HCS03 :
Hydrocortisone EP Impurity C ; Hydrocortisone Acetate ; Prednisolone Acetate EP Impurity A ;

11+¦,17+¦,21-Trihydroxy-4-pregnene-3,20-dione-21-acetate ;
CAS:50-03-3
PSA01 :
Prednisolone Acetate EP Impurity A ; Hydrocortisone Acetate ; Hydrocortisone EP Impurity C ;

11+¦,17,19,21-Tetrahydroxypregn-4ene-3,20-dione ;
CAS:154032-37-8
HCS15 :
Hydrocortisone EP Impurity O ; 19-Hydroxyhydrocortisone ; 19-Hydroxycortisol ;

11+¦,17,20+¦,21-Tetrahydroxypregna-1,4-dien-3-one ;
CAS:2299-46-9
PNS07 :
Prednisolone EP Impurity G ; 20+¦-Hydroxyprednisolone ; 20(S)-Hydroxy Prednisolone ;

11+¦,17,20+¦,21-Tetrahydroxypregna-1,4-dien-3-one ;
CAS:15847-24-2
PNS47 :
Prednisolone 20+¦-Hydroxy Impurity ; 20(R)-Hydroxy Prednisolone ;

11+¦,17,21,21-Tetrahydroxy-6+¦-methylpregna-1,4-diene-3,20-dione ;
CAS:58636-50-3 (aldehyde form) 65644-79-3 (hydrated f
MPS02 :
Methylprednisolone EP Impurity B ; Methylprednisolone Acetate EP Impurity C ; Methylprednisolone Acetal ;

11+¦,17,21-Trihydroxy-21-(11+¦,17,21-trihydroxy-3,20dioxopregn-4-en-21-yl)pregn-4-ene-3,20-dione ;
HCS14 :
Hydrocortisone EP Impurity N ; Hydrocortisone Dimer ;

11+¦,17,21-Trihydroxy-6+¦-methylpregn-4-ene-3,20-dione ;
CAS:1625-39-4
MPS06 :
Methylprednisolone EP Impurity F ; 6+¦-Methyl Hydrocortisone ;

11+¦,17,21-Trihydroxy-6+¦-methylpregna-1,4-diene-3,20-dione ;
CAS:18462-27-6
MPS08 :
Methylprednisolone EP Impurity H ; 6+¦-Methylprednisolone ;

11+¦,17,21-Trihydroxy-6+¦-methylpregna-1,4-diene-3,20-dione ;
CAS:83-43-2
MHS01 :
Methylprednisolone Hydrogen Succinate EP Impurity A ; Methylprednisolone ; Methylprednisolone Acetate EP Impurity B ;

11+¦,17,21-Trihydroxy-6+¦-methylpregna-1,4-diene-3,20-dione ;
CAS:83-43-2
MSA02 :
Methylprednisolone Acetate EP Impurity B ; Methylprednisolone ; Methylprednisolone Hydrogen Succinate EP Impurity A ;

11+¦,17,21-Trihydroxy-6+¦-methylpregna-1,4-diene-3,20-dione ;
CAS:83-43-2
MPS00 :
Methylprednisolone ; Methylprednisolone Acetate EP Impurity B ; Methylprednisolone Hydrogen Succinate EP Impurity A ; 6+¦-Methyl Prednisolone ;

11+¦,17,21-Trihydroxy-pregna-1,4-diene-3,20-dione 21-succinate sodium salt ;
CAS:1715-33-9
PNS49N :
Prednisolone 21-Hemisuccinate Sodium Salt ;

11+¦,17,21-Trihydroxy-pregna-1,4-diene-3,20-dione 21-succinic acid ;
CAS:2920-86-7
PNS49A :
Prednisolone 21-Hemisuccinic Acid ;

11+¦,17,21-Trihydroxypregn-4-ene-3,20-dione ;
CAS:50-23-7
PNS01 :
Prednisolone EP Impurity A ; 1,2-Dihydro Prednisolone ; Hydrocortisone ; Hydrocortisone Acetate EP Impurity A ;

11+¦,17,21-Trihydroxypregn-4-ene-3,20-dione ;
CAS:50-23-7
HCS00 :
Hydrocortisone ; Prednisolone EP Impurity A ; Hydrocortisone Acetate EP Impurity A ;

11+¦,17,21-Trihydroxypregn-4-ene-3,20-dione ;
CAS:50-23-7
HCA01 :
Hydrocortisone Acetate EP Impurity A ; Hydrocortisone ;

11+¦,17,21-Trihydroxypregn-4-ene-3,20-dione ;
CAS:566-35-8
HCS13 :
Hydrocortisone EP Impurity M ; Epi-Hydrocortisone ; 11-Epihydrocortisone ;

11+¦,17,21-Trihydroxypregn-4-ene-3,20-dione 17-valerate ;
CAS:57524-89-7
HCV00 :
Hydrocortisone Valerate ;

11+¦,17,21-Trihydroxypregn-4-ene-3,20-dione 21-cyclopentanepropionate ;
CAS:508-99-6
HCC00 :
Hydrocortisone Cypionate ;

11+¦,17,21-Trihydroxypregna-1,4,6-triene-3,20-dione ;
CAS:2427-64-7
PNS08 :
Prednisolone EP Impurity H ; +ö6-Prednisolone ; 6-Dehydro Prednisolone ;

11+¦,17,21-Trihydroxypregna-1,4-diene-3,20-dione ;
CAS:600-90-8
PNS06 :
Prednisolone EP Impurity F ; 11-epi-Prednisolone ; Prednisolone Acetate EP Impurity F ;

11+¦,17,21-Trihydroxypregna-1,4-diene-3,20-dione ;
CAS:50-24-8
PNS00 :
Prednisolone ; Desonide USP Impurity B ; Prednisolone Acetate EP Impurity B ; Prednicarbate EP Imp A ; Prednisone EP Impurity B ; Hydrocortisone EP Impurity A ; Methylprednisolone EP Impurity K ;

11+¦,17,21-Trihydroxypregna-1,4-diene-3,20-dione ;
CAS:50-24-8
PSA02 :
Prednisolone Acetate EP Impurity B ; Desonide USP Impurity B ; Prednisolone ; Prednicarbate EP Impurity A ; Prednisone EP Impurity B ; Hydrocortisone EP Impurity A ; Methylprednisolone EP Impurity K ;

11+¦,17,21-Trihydroxypregna-1,4-diene-3,20-dione ;
CAS:50-24-8
MPS11 :
Methylprednisolone EP Impurity K ; Desonide USP Impurity B ; Prednisolone ; Prednisolone Acetate EP Impurity B ; Prednicarbate EP Impuirty A ; Prednisone EP Impurity B ; Hydrocortisone EP Impurity A ;

11+¦,17,21-Trihydroxypregna-1,4-diene-3,20-dione 11,21-diacetate ;
CAS:98523-85-4
PNS50 :
Prednisolone 11,21-Diacetate Impurity ; Prednisolone Acetate EP Impurity C ; Prednisolone Diacetate ;

11+¦,17,21-Trihydroxypregna-1,4-diene-3,20-dione 11,21-diacetate ;
CAS:98523-85-4
PSA03 :
Prednisolone Acetate EP Impurity C ; Prednisolone 11,21-Diacetate Impurity ; Prednisolone Diacetate ;

11+¦,17,21-Trihydroxypregna-1,4-diene-3,20-dione 21-(dihydrogen phosphate) ;
CAS:302-25-0
PNS50A :
Prednisolone Phosphate (Acid) ;

11+¦,17,21-Trihydroxypregna-1,4-diene-3,20-dione 21-(dihydrogen phosphate) disodium salt ;
CAS:125-02-0
PNS50N :
Prednisolone Phosphate Sodium Salt ;

11+¦,17,21-Trihydroxypregna-1,4-diene-3,20-dione 21-propionate ;
CAS:5740-62-5
PNS55 :
Prednisolone 21-Propionate Impurity ; Prednicarbate EP Impurity C ; Prednicarbate USP RC C ;

11+¦,17,21-Trihydroxypregna-4,6-diene-3,20-dione ;
CAS:600-99-7
HCS05 :
Hydrocortisone EP Impurity E ; Gêå6-Hydrocortisone ; 6-Dehydrocortisol ;

11+¦,17-Dihydroxy-3,20-dioxopregn-4-en-21-al (hydrate) ;
CAS:906337-64-2 (hydrate form) 14760-49-7 (aldehyde f
HCS07 :
Hydrocortisone EP Impurity G ; Hydrocortisone 21-Aldehyde (Hydrate) ;

11+¦,17-Dihydroxy-3,20-dioxopregn-4-en-21-yl acetate ;
CAS:50-03-3
HCA00 :
Hydrocortisone Acetate ; Hydrocortione EP Impurity C ; Prednisolone Acetate EP Impurity A ; Prednisolone EP Impurity A ;

11+¦,17-Dihydroxy-3,20-dioxopregn-4-en-21-yl acetate ;
CAS:1250-97-1
HCA06 :
Hydrocortisone Acetate EP Impurity F ; 11-Epi-Hydrocortisone Acetate ;

11+¦,17-Dihydroxy-3,20-dioxopregna-1,4-dien-21-yl acetate ;
CAS:52-21-1
HCA03 :
Hydrocortisone Acetate EP Impurity C ; Prednisolone Acetate ; Prednisone EP Impurity L ; Methylprednisolone Acetate EP Impurity E ; Prednisolone EP Impurity C ;

11+¦,17-Dihydroxy-3,20-dioxopregna-1,4-dien-21-yl acetate ;
CAS:52-21-1
PNS03 :
Prednisolone EP Impurity C ; Prednisolone Acetate ; Methylprednisolone Acetate EP Impurity E ; Prednisone EP Impurity L ;

11+¦,17-Dihydroxy-3,20-dioxopregna-1,4-dien-21-yl acetate ;
CAS:52-21-1
PSA00 :
Prednisolone Acetate ; Prednisolone EP Impurity C ; Methylprednisolone Acetate EP Impurity E ; Prednisone EP Impurity L ;

11+¦,17-Dihydroxy-3,20-dioxopregna-1,4-dien-21-yl acetate ;
CAS:52-21-1
MSA05 :
Methylprednisolone Acetate EP Impurity E ; Prednisolone Acetate ; Prednisolone EP Impurity C ; Prednisolone EP Impurity C ; Prednisone EP Impurity L ;

11+¦,17-Dihydroxy-6+¦-methyl-3,20-dioxopregn-4-en-21-yl Acetate ;
CAS:1625-11-2
MSA07 :
Methylprednisolone Acetate EP Impurity G ; 1,2-Dihydro Methylprednisolone Acetate ; 6+¦-Methyl Hydrocortisone 21-Acetate ;

11+¦,17-Dihydroxy-6+¦-methyl-3,20-dioxopregna-1,4-dien-21-yl acetate ; 21-Acetoxy-11+¦,17-dihydroxy-6+¦-methylpregna-1,4-diene-3,20-dione ;
CAS:53-36-1
MSA00 :
Methylprednisolone Acetate ; Methylprednisolone EP Impurity J ; Methylprednisolone Hydrogen Succinate EP Impurity C ; 6+¦-Methyl Prednisolone 21-Acetate ;

11+¦,17-Dihydroxy-6+¦-methyl-3,20-dioxopregna-1,4-dien-21-yl acetate ; 21-Acetoxy-11+¦,17-dihydroxy-6+¦-methylpregna-1,4-diene-3,20-dione ;
CAS:53-36-1
MHS03 :
Methylprednisolone Hydrogen Succinate EP Impurity C ; Methylprednisolone Acetate ; Methylprednisolone EP Impurity J ;

11+¦,17-Dihydroxy-6+¦-methyl-3,20-dioxopregna-1,4-dien21-yl acetate ;
CAS:53-36-1
MPS10 :
Methylprednisolone EP Impurity J ; Methylprednisolone Acetate ; Methylprednisolone Hydrogen Succinate EP Impurity C ;

11+¦,17-Dihydroxy-6+¦-methylpregna-1,4-diene-3,20-dione ;
CAS:6870-94-6
MPS12 :
Methylprednisolone EP Impurity L ; Methylprednisolone Hydrogen Succinate EP Impurity G ; Methylprednisolone Acetate EP Impurity I ; Deltamedrane ;

11+¦,17-Dihydroxy-6+¦-methylpregna-1,4-diene3,20,21-trione ;
CAS:58636-50-3 (aldehyde form) 65644-79-3 (hydrated f
MSA03 :
Methylprednisolone Acetate EP Impurity C ; Methylprednisolone EP Impurity B ; Methylprednisolone Acetal ;

11+¦,17-Dihydroxypregn-4-ene-3,20-dione ;
CAS:641-77-0
HCA02 :
Hydrocortisone Acetate EP Impurity B ; Hydrocortisone EP Impurity L ; Oxenol ;

11+¦,17-Dihydroxypregn-4-ene-3,20-dione ;
CAS:641-77-0
HCS12:
Hydrocortisone EP Impurity L ; Hydrocortisone Acetate Impurity B ; 21-Deoxycortisol ; Oxenol ;

11+¦,17-Dihydroxypregna-1,4-diene-3,20-dione ;
CAS:20423-99-8
PNS53 :
Prednisolone 21-Deoxy Impurity ; Deprodone ; Prednisolone Acetate EP Impurity D ;

11+¦,17-Dihydroxypregna-1,4-diene-3,20-dione ;
CAS:20423-99-8
PSA04 :
Prednisolone Acetate EP Impurity D ; Prednisolone 21-Deoxy Impurity ; Deprodone ;

11+¦,21-Dihydroxy-3,20-dioxopregn-4-en-17-yl acetate ;
CAS:16463-74-4
HCS10 :
Hydrocortisone EP Impurity J ; Hydrocortisone-17-Acetate ;

11+¦,21-Dihydroxypregna-1,4-diene-3,20-dione ;
CAS:13479-38-4
PNS09 :
Prednisolone EP Impurity I ; 17-Deoxy Prednisolone ;

11+¦-Hydroxy-6+¦-methyl-3-oxoandrosta-1,4-diene-17+¦-carboxylic acid ;
CAS:229019-44-7
MPS05 :
Methylprednisolone EP Impurity E ;

11+¦-Hydroxy-6+¦-methyl-3-oxopregna-1,4,17(20)-trien-21-yl Acetate ;
CAS:1968-76-9
MSA08 :
Methylprednisolone Acetate EP Impurity H ;

11+¦-Hydroxy-6+¦-methylandrosta-1,4-diene-3,17-dione ;
CAS:61919-52-6
MPS03 :
Methylprednisolone EP Impurity C ; Methylprednisolone USP RC C ;

11+¦-Hydroxy-6+¦-methylpregna-1,4-diene-3,20,21-trione ;
CAS:150899-33-5 & 1338549-02-2
MSA04 :
Methylprednisolone Acetate EP Impurity D ; Methylprednisolone EP Impurity D ;

11,11'-[3,5-Pyridinediylbis(methylene-1,4-piperidinediyl)]bis[8-chloro-6,11-dihydro-5H-benzo[5,6]cyclohepta[1,2-b]pyridine ;
CAS:1224515-72-3
RPT03B :
Rupatadine EP Impurity C ; 5'-[(Desloratadine)methyl] Rupatadine ;

11,11GÇ¦-Dicyclopropyl-4,4GÇ¦-dimethyl-5,5GÇ¦,11,11GÇ¦-tetrahydro-6H,6GÇ¦H-9,9GÇ¦-bidipyrido[3,2-b:2GÇ¦,3GÇ¦-e][1,4]diazepine-6,6GÇ¦dione ;
CAS:1391054-30-0
NVR04 :
Nevirapine EP Impurity D ; Nevirapine Dimer ;

11-(2-(2-(4-(Dibenzo[b,f][1,4]thiazepin-11-yl)piperazin-1-yl)ethoxy)ethoxy) dibenzo[b,f][1,4]thiazepine ;
CAS:1800608-95-0
QTP23B :
Quetiapine EP Impurity W ;

11-(4-(2-(2-(Trityloxy)ethoxy)ethyl)piperazin-1-yl)dibenzo[b,f][1,4]thiazepine ;
CAS:844639-06-1
QTP15 :
Quetiapine EP Impurity O ; Quetiapine O-Trityl Impurity ;

11-(4-(2-(2-Hydroxyethoxy)ethyl)piperazin-1-yl)dibenzo[b,f][1,4]thiazepin-7-ol hydrochloride ;
CAS:139079-39-3
QTP38H :
Quetiapine 7-Hydroxy Impurity ;

11-(4-Ethylpiperazin-1-yl)dibenzo[b,f][1,4]thiazepine ;
CAS:1011758-03-4
QTP16B :
Quetiapine EP Impurity P (Base) ; Quetiapine N-Ethyl Analog ;

11-(4-Ethylpiperazin-1-yl)dibenzo[b,f][1,4]thiazepine dihydrochloride ;
QTP16H :
Quetiapine EP Impurity P (2HCl) ; Quetiapine N-Ethyl Analog (2HCl) ;

11-(4-Methylpiperazin-1-yl)-dibenzo[b,f][1,4]thiazepine ;
QTP53 :
Quetiapine DBTP N-Methyl Impurity ; Quetiapine-M (Desalkyl) ME ;

11-(4-Nitrosopiperazin-1-yl)dibenzo[b,f][1,4]thiazepine ;
QTP48B :
Quetiapine EP Impurity B N-Nitroso Analog ; Nitroso Norquetiapine

11-(Chloroacetyl)-5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one, ;
CAS:28797-48-0
PZN01 :
Pirenzepine EP Impurity A ;

11-[(4-Methylpiperazin-1-yl)acetyl]-5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one ;
CAS:28797-61-7
PZN00B :
Pirenzepine (Base) ;

11-[(4-Methylpiperazin-1-yl)acetyl]-5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one dihydrochloride ;
CAS:29868-97-1
PZN00H :
Pirenzepine (2HCl) ; Pirenzepine Dihydrochloride ;

11-[4-(2-Hydroxyethyl)-1-piperazinyl]-dibenzo[b,f][1,4]thiazepine ;
CAS:329216-67-3
QTP09B :
Quetiapine EP Impurity I (Base) ; Quetiapine Desethoxy Impurity (USP) ; Quetiapine Deshydroxyethyl Impurity ; Quetiapine Alcohol Impurity ; Quetiapine Ethanol Impurity ;

11-[4-(2-Hydroxyethyl)-1-piperazinyl]-dibenzo[b,f][1,4]thiazepine dihydrochloride ;
CAS:329218-14-6
QTP09H :
Quetiapine EP Impurity I (2HCl) ; Quetiapine Desethoxy Impurity (2HCl) ;

11-[4-[2-(2-Hydroxyethoxy)ethyl]piperazin-1-yl]-10,11-dihydrodibenzo[b,f][1,4]thiazepin-11-ol ;
CAS:1241800-24-7
QTP72B :
Quetiapine 2-Hydroxy Impurity ; Quetol ;

11-Chloro-5,5-dioxidodibenzo[b,f][1,4]thiazepine ;
QTP56 :
Quetiapine DBTC Sulfone ;

11-Cyclopropyl-3-ethenyl-5,11-dihydro-4-methyl-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one ;
CAS:284686-22-2
NVR55 :
Nevirapine 3-Ethenyl ;

11-Cyclopropyl-4-methyl-5,11-dihydro-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one ;
CAS:129618-40-2
NVR00 :
Nevirapine ;

11-Cyclopropyl-5,11-dihydro-2-hydroxy-4-methyl-6H-dipyrido[3,2-b:2GÇ¦,3'-e][1,4]diazepine-6-one ;
CAS:254889-31-1
NVR52 :
Nevirapine 2-Hydroxy Impurity ;

11-Cyclopropyl-5,11-dihydro-3-hydroxy-4-methy-6H-dipyrido[3,2-b:2GÇ¦,3'-e][1,4]diazepin-6-one ;
CAS:174532-82-2
NVR53 :
Nevirapine 3-Hydroxy Impurity ;

11-Cyclopropyl-5,11-dihydro-4-(hydroxymethyl)-6H-dipyrido[3,2-b:2',3'-e][1,4] diazepin-6-one ;
CAS:133627-24-4 .
NVR59 :
Nevirapine 12-Hydroxy ;

11-Cyclopropyl-5,11-dihydro-4-[[(methylsulfonyl)oxy]methyl]-6H-dipyrido[3,2-b:2',3'-e][1,4]diazepin-6-one ;
CAS:1046462-02-5
NVR62 :
Nevirapine Methanesulfonate ;

11-Cyclopropyl-5,11-dihydro-4-methyl-2-nitro-6H-dipyrido[3,2-b:2GÇ¦,3GÇ¦-e][1,4]diazepin-6-one ;
CAS:284686-16-4
NVR42 :
Nevirapine 2-Nitro Impurity ;

11-Cyclopropyl-5,11-dihydro-8-hydroxy-4-methyl-6H-dipyrido[3,2-b:2GÇ¦,3'-e][1,4]diazepin-6-one ;
CAS:254889-32-2
NVR58 :
Nevirapine 8-Hydroxy Impurity ;