2-Naphthalenesulfonic acid, 3-((2,4-dimethylphenyl)azo)-4-hydroxy-7-((((5-hydroxy-7-sulfo-6-((6-sulfo-2-naphthalenyl)azo)-2-naphthalenyl)amino)carbonyl)amino)-, trisodium salt 4-Hydroxy-7-((((5-hydroxy-6-((2,4-dimethylphenyl)azo)-7-sulfo-2-naphthalenyl)amino)carbonyl)amino)-3-((6-sulfo-2-naphthalenyl)azo)-2-naphthalenesulfonic acid, trisodium salt 67923-64-2 EINECS 267-780-4 Trisodium 3-((2,4-dimethylphenyl)azo)-4-hydroxy-7-((((5-hydroxy-7-sulphonato-6-((6-sulphonato-2-naphthyl)azo)-2-naphthyl)amino)carbonyl)amino)naphthalene-2-sulphonate