Quick view View Item Promethazine hydrochloride solution 1.0 mg/mL (M HCl in Methanol (as free base)), ampule of 1 mL, certified reference material, Cerilliant Promethazine hydrochloride solution 1.0 mg/mL (1% 1 M HCl in Methanol (as free base)), ampule of 1 mL, certified reference material, Cerilliant® Empirical Formula (Hill Notation): C17H20N2S · HCl CAS Number: 58-33-3 ... Weight: 1.00 LBS View Item Quick view Qty in Cart: 0 Price: Subtotal: