Product Description 2-Amino-5-naphthol-7-sulfonic acid Other Details Molecular Formula: C10H9NO4S Molecular Weight: 239.25 CAS Number: 87-02-5 Minimum Purity: 0.95 UN Number: 0 Dangerous Goods Class: 0 Packing Group: 0 Storage Temperature: 0 Sizes 1: 25g Leadtime:20 Days Sizes 2: 100g Leadtime:20 Days Sizes 3: 500g Leadtime:20 Days