Product Description Alizarin Yellow R, tech. Other Details Molecular Formula: C13H9N3O5 Molecular Weight: 287.23 CAS Number: 2243-76-7 Minimum Purity: 0 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: 25g Leadtime:20 Days