2,7-Naphthalenedisulfonic acid, 4-hydroxy-5-((4-((((5-hydroxy-7-sulfo-6-((2-sulfo-4-((4-sulfophenyl)azo)phenyl)azo)-2-naphthalenyl)amino)carbonyl)amino)-5-methoxy-2-methylphenyl)azo)-, pentasodium salt 4-Hydroxy-5-((4-((((3-((4-((4-sulfophenyl)azo)-2-sulfophenyl)azo)-4-hydroxy-2-sulfo-7-naphthalenyl)amino)carbonyl)amino)-5-methoxy-2-methylphenyl)azo)-2,7-naphthalenedisulfonic acid, pentasodium salt 72987-21-4 EINECS 277-180-4 Pentasodium 4-hydroxy-5-((4-((((5-hydroxy-7-sulphonato-6-((2-sulphonato-4-((4-sulphonatophenyl)azo)phenyl)azo)-2-naphthyl)amino)carbonyl)amino)-5-methoxy-o-tolyl)azo)naphthalene-2,7-disulphonate