CAS 6227-14-1 appears in our catalog under these names: 4-Hydroxy-3-[2-[2-methoxy-5-methyl-4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-7-(phenylamino)-2-naphthalenesulfonic acid disodium salt, C.I. Direct Violet 9. Offered by: Chemat, MedChemExpress. Available pack sizes: 5g, 25g, 100g, Get quote.