Product Description Pyronine B Other Details Molecular Formula: C21H27ClN2O Molecular Weight: 358.9 CAS Number: 2150-48-3 Minimum Purity: ≥60% (dye content) UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 5g Leadtime:20 Days Sizes 2: 25g Leadtime:20 Days Sizes 3: 100g Leadtime:20 Days