HCID 1608322,7-Naphthalenedisulfonic acid, 3-[2-(5-chloro-2-phenoxyphenyl)diazenyl]-4-hydroxy-5-[[(4-methylphenyl)sulfonyl]amino]-, sodium salt (1:2)CAS 6416-66-6 · CID 160832 · C29H20ClN3Na2O10S3