POLYSTACHOSIDE CAS:... Trade Name: SIGMA Formula: C20H18O11 ≥95% (LC/MS-UV) ≥95% (LC/MS-UV) SMB00514 POLYSTYRENE CAS:... Trade Name: ALDRICH average Mw ~280,000 by GPC average Mw ~280,000 by GPC 182427 | ||||||||||||||||