1,7-Naphthalenedisulfonic acid, 4-(benzoylamino)-5-hydroxy-6-((3-methylphenyl)azo)-, disodium salt 6362-44-3 Disodium 4-(benzoylamino)-5-hydroxy-6-((m-tolyl)azo)naphthalene-1,7-disulphonate EINECS 228-841-0