Product Description o-Methylisourea bisulfate Other Details Molecular Formula: C2H6N2O.H2SO4 Molecular Weight: 172.16 CAS Number: 29427-58-5 Minimum Purity: 98% (HPLC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5g Leadtime:20 Days Sizes 2: 10g Leadtime:20 Days Sizes 3: 25g Leadtime:20 Days