Product Description Patent blue VF sodium salt Other Details Molecular Formula: C27H31N2NaO6S2 Molecular Weight: 566.66 CAS Number: 129-17-9 Minimum Purity: 90% (HPLC) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:20 Days Sizes 2: 0 Leadtime:0 Sizes 3: 0 Leadtime:0