Synonyms: Chromate(2-), (2,4-dinitro-6-(2-(2-(phenylamino-kappaN)-1-naphthalenyl)diazenyl-kappaN1)phenolato(2-)-kappaO)(3-(hydroxy-kappaO)-4-(2-(2-(hydroxy-kappaO)-1-naphthalenyl)diazenyl-kappaN1)-1-naphthalenesulfonato(3-))-, sodium (1:2);Chromate(2-), (2,4-dinitro-6-((2-(phenylamino)-1-naphthalenyl)azo)phenolato(2-))(3-hydroxy-4-((2-hydroxy-1-naphthalenyl)azo)-1-naphthalenesulfonato(3-))-, disodium;Chromate(2-), (2,4-dinitro-6-((2-(phenylamino-kappaN)-1-naphthalenyl)azo-kappaN1)phenolato(2-)-kappaO)(3-(hydroxy-kappaO)-4-((2-(hydroxy-kappaO)-1-naphthalenyl)azo-kappaN1)-1-naphthalenesulfonato(3-))-, disodium;Disodium (6-((2-anilino-1-naphthyl)azo)-2,4-dinitrophenolato(2-))(3-hydroxy-4-((2-hydroxy-1-naphthyl)azo)naphthalene-1-sulphonato(3-))chromate(2-)