Product Description Copper(II) sulfate pentahydrate Other Details Molecular Formula: CuH10O9S Molecular Weight: 249.69 CAS Number: 7758-99-8 Minimum Purity: 0.95 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