Product Description Sodium hydroxymethanesulfinate dihydrate Other Details Molecular Formula: CH3SO3.Na.2H2O Molecular Weight: 154.12 (118.09, anhy) CAS Number: 149-44-0 Minimum Purity: 0.98 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 25g Leadtime:20 Days Sizes 2: 100g Leadtime:20 Days Sizes 3: 500g Leadtime:20 Days