Product Description Papaverine hydrochloride Other Details Molecular Formula: C20H21NO4.HCl Molecular Weight: 375.85 CAS Number: 61-25-6 Minimum Purity: 99% (HPLC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:20 Days Sizes 2: 5g Leadtime:20 Days Sizes 3: 25g Leadtime:20 Days