Product Description Disperse Red 19 Other Details Molecular Formula: C16H18N4O4 Molecular Weight: 330.34 CAS Number: 2734-52-3 Minimum Purity: Dye content 97 % UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 1g Leadtime:20 Days Sizes 2: 5g Leadtime:20 Days Sizes 3: 0 Leadtime:0