Product Description Acid Yellow 3 Other Details Molecular Formula: C18H9NO8S2.2Na Molecular Weight: 477.38 CAS Number: 8004-92-0 Minimum Purity: 0 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