Product Description Direct Red 31, tech. Other Details Molecular Formula: C32H21N5Na2O8S2 Molecular Weight: 713.65 CAS Number: 5001-72-9 Minimum Purity: 0 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