Synonyms: 10241-21-1;AC1L33IJ;EINECS 233-577-4;AR-1I2307;Sodium (6-amino-5-((2-hydroxy-4-nitrophenyl)azo)naphthalene-1-sulphonato(3-))hydroxychromate(1-);37291-39-7;Chromate(1-), (6-(amino-kappaN)-5-((2-(hydroxy-kappaO)-4-nitrophenyl)azo-kappaN1)-1-naphthalenesulfonato(3-))hydroxy-, sodium, (T-4)-;Chromate(1-), (6-(amino-kappaN)-5-(2-(2-(hydroxy-kappaO)-4-nitrophenyl)diazenyl-kappaN1)-1-naphthalenesulfonato(3-))hydroxy-, sodium (1:1), (T-4)-;Chromate(1-), (6-amino-5-((2-hydroxy-4-nitrophenyl)azo)-1-naphthalenesulfonato(3-))hydroxy-, sodium;Chromate(1-), [6-amino-5-[(2-hydroxy-4- nitrophenyl)azo]-1-naphthalenesulfonato(3-)]hydroxy -, sodium;chromium(3+) sodium hydroxide 6-azanidyl-5-[(E)-(4-nitro-2-oxidophenyl)diazenyl]naphthalene-1-sulfonate (1:1:1:1);chromium(3+) sodium hydroxide6-azanidyl-5-[(e)-(4-nitro-2-oxidophenyl)diazenyl]naphthalene-1-sulfonate(1:1:1:1);sodium; 6-azanidyl-5-[(4-nitro-2-oxidophenyl)diazenyl]naphthalene-1-sulfonate; chromium(3+); hydroxide