1-Naphthalenesulfonic acid, 4-((1-hydroxy-6-((((5-hydroxy-6-((2-methoxyphenyl)azo)-7-sulfo-2-naphthalenyl)amino)carbonyl)amino)-3-sulfo-2-naphthalenyl)azo)-, trisodium salt 3687-80-7 4-((7-((((6-((2-Methoxyphenyl)azo)-5-hydroxy-7-sulfonaphth-2-yl)amino)carbonyl)amino)-4-hydroxy-2-sulfonaphth-3-yl)azo)-1-naphthalenesulfonic acid, trisodium salt EINECS 222-984-2 Trisodium 4-((6-((((6-((o-anisyl)azo)-5-hydroxy-7-sulphonato-2-naphthyl)amino)carbonyl)amino)-1-hydroxy-3-sulphonato-2-naphthyl)azo)naphthalene-1-sulphonate