Product Description H-Cys(HSO3)-OH sodium salt Other Details Molecular Formula: C3H6NO5S2.Na Molecular Weight: 223.2 CAS Number: 7381-67-1 Minimum Purity: 0.98 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:50 Days Sizes 2: 5g Leadtime:50 Days Sizes 3: 10g Leadtime:50 Days