Synonyms: Chromate(3-), bis(4-(2-(1-(2,5-dichlorophenyl)-4,5-dihydro-3-methyl-5-(oxo-kappaO)-1H-pyrazol-4-yl)diazenyl-kappaN1)-3-(hydroxy-kappaO)-1-naphthalenesulfonato(3-))-, hydrogen (1:3);Chromate(3-), bis(4-((1-(2,5-dichlorophenyl)-4,5-dihydro-3-methyl-5-(oxo-kappaO)-1H-pyrazol-4-yl)azo-kappaN1)-3-(hydroxy-kappaO)-1-naphthalenesulfonato(3-))-, trihydrogen;Trihydrogen bis(4-((1-(2,5-dichlorophenyl)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-4-yl)azo)-3-hydroxynaphthalene-1-sulphonato(3-))chromate(3-);chromium(3+) hydrogen 4-{(E)-[1-(2,5-dichlorophenyl)-3-methyl-5-oxido-1H-pyrazol-4-yl]diazenyl}-3-oxidonaphthalene-2-sulfonate (1:3:2)