Synonyms: Chromate(1-), triaqua(4-((4,5-dihydro-3-methyl-5-(oxo-kappaO)-1-(3-sulfophenyl)-1H-pyrazol-4-yl)azo-kappaN1)-3-(hydroxy-kappaO)-1-naphthalenesulfonato(4-))-, sodium (1:1);Chromium, triaqua(hydrogen-3-hydroxy-4-((3-methyl-5-oxo-1-(m-sulfophenyl)-2-pyrazolin-4-yl)azo)-1-naphthalenesulfonato(3-))-, monosodium salt;Chromate(1-), triaqua(4-((4,5-dihydro-3-methyl-5-(oxo-kappaO)-1-(3-sulfophenyl)-1H-pyrazol-4-yl)azo-kappaN1)-3-(hydroxy-kappaO)-1-naphthalenesulfonato(4-))-, sodium;Monosodium triaqua((hydrogen -3-hydroxy-4-((5-hydroxy-3-methyl-1-(m-sulphophenyl)pyrazol-4-yl)azo)naphthalene-1-sulphonato)(3-))chromium;chromium(3+) sodium 4-{(E)-[3-methyl-5-oxido-1-(3-sulfonatophenyl)-1H-pyrazol-4-yl]diazenyl}-3-oxidonaphthalene-1-sulfonate hydrate (1:1:1:3)