5-((4-((6-((2-((2-Carboxyphenyl)azo)-1,3-dioxobutyl)amino)-2-hydroxy-4-sulfo-1-naphthalenyl)azo)-3-methoxy-7-sulfo-1-naphthalenyl)azo)-2-hydroxybenzoic acid, tetrasodium salt 70209-88-0 Benzoic acid, 5-((4-((6-((2-((2-carboxyphenyl)azo)-1,3-dioxobutyl)amino)-2-hydroxy-4-sulfo-1-naphthalenyl)azo)-3-methoxy-7-sulfo-1-naphthalenyl)azo)-2-hydroxy-, tetrasodium salt EINECS 274-387-1 Tetrasodium 5-((4-((6-((2-((2-carboxylatophenyl)azo)-1,3-dioxobutyl)amino)-2-hydroxy-4-sulphonato-1-naphthyl)azo)-3-methoxy-7-sulphonato-1-naphthyl)azo)salicylate