2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3-((4-((4-(phenylamino)-5-sulfo-1-naphthalenyl)azo)phenyl)azo)-6-(phenylazo)-, trisodium salt 4-Amino-5-hydroxy-6-phenylazo-3-(((4-(4-phenylamino-5-sulfo-1-naphthalenyl)azo)phenyl)azo)naphthalene-2,7-disulfonic acid, trisodium salt 68155-61-3 EINECS 268-973-6 Trisodium 4-amino-5-hydroxy-3-((4-((4-(phenylamino)-5-sulphonato-1-naphthyl)azo)phenyl)azo)-6-(phenylazo)naphthalene-2,7-disulphonate