Product Description Variamine Blue B [Redox Indicator] Other Details Molecular Formula: C13H15ClN2O Molecular Weight: 250.72 CAS Number: 3566-44-7 Minimum Purity: >98.0%(T) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:20 Days Sizes 2: 25g Leadtime:20 Days Sizes 3: 0 Leadtime:0