Product Description Direct Black 22, tech. Other Details Molecular Formula: C44H32N13Na3O11S3 Molecular Weight: 1083.97 CAS Number: 6473-13-8 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