Synonyms: EINECS 270-875-3;AC1L4SPO;68479-94-7;Chromate(2-), (3-(hydroxy-kappaO)-4-((2-(hydroxy-kappaO)-1-naphthalenyl)azo-kappaN1)-7-nitro-1-naphthalenesulfonato(3-))(1-((2-(hydroxy-kappaO)-4-nitrophenyl)azo-kappaN1)-2-naphthalenolato(2-)-kappaO)-, sodium hydrogen;Chromate(2-), (3-(hydroxy-kappaO)-4-(2-(2-(hydroxy-kappaO)-1-naphthalenyl)diazenyl-kappaN1)-7-nitro-1-naphthalenesulfonato(3-))(1-(2-(2-(hydroxy-kappaO)-4-nitrophenyl)diazenyl-kappaN1)-2-naphthalenolato(2-)-kappaO)-, sodium hydrogen (1:1:1);Chromate(2-), (3-hydroxy-4-((2-hydroxy-1-naphthalenyl)azo)-7-nitro-1-naphthalenesulfonato(3-))(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphthalenolato(2-))-, sodium hydrogen;Chromate(3-), (1-((2-hydroxy-4-nitrophenyl)azo)-2-naphthalenolato(2-))(3-hydroxy-4-((2-hydroxy-1-naphthyl)azo)-7-nitro-1-naphthalenesulfonato(3-)), sodium dihydrogen;Hydrogen sodium (3-hydroxy-4-((2-hydroxy-1-naphthyl)azo)-7-nitronaphthalene-1-sulphonato(3-))(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphtholato(2-))chromate(2-);sodium; chromium(3+); 7-(dioxidoamino)-3-oxo-4-[(2-oxonaphthalen-1-ylidene)hydrazinylidene]naphthalene-1-sulfonate; hydron; 1-[(4-nitro-2-oxidophenyl)diazenyl]naphthalen-2-olate