GR 113808 CAS:... Trade Name: SIGMA Formula: C19H27N3O4S ≥98% (HPLC), solid ≥98% (HPLC), solid G5918 GR 32191B CAS:... Trade Name: SIGMA Formula: C30H40NO4Cl ≥98% (HPLC), solid ≥98% (HPLC), solid G5044 | ||||||||||||||||