Synonyms: Chromate(2-), (2,4-dihydro-4-(2-(2-(hydroxy-kappaO)-5-(2-phenyldiazenyl)phenyl)diazenyl-kappaN1)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)-kappaO3)(3-(2-(4,5-dihydro-3-methyl-5-(oxo-kappaO)-1-phenyl-1H-pyrazol-4-yl)diazenyl-kappaN1)-4-(hydroxy-kappaO)-5-nitrobenzenesulfonato(3-))-, sodium (1:2);Chromate(2-), (2,4-dihydro-4-((2-(hydroxy-kappaO)-5-(phenylazo)phenyl)azo-kappaN1)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)-kappaO3)(3-((4,5-dihydro-3-methyl-5-(oxo-kappaO)-1-phenyl-1H-pyrazol-4-yl)azo-kappaN1)-4-(hydroxy-kappaO)-5-nitrobenzenesulfonato(3-))-, disodium;Chromate(2-), (2,4-dihydro-4-((2-hydroxy-5-(phenylazo)phenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))(3-((4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-4-hydroxy-5-nitrobenzenesulfonato(3-))-, disodium;chromium(3+) sodium 5-(dioxidoamino)-3-[(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinylidene]-4-oxocyclohexa-1,5-diene-1-sulfonate 2-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)-1-[6-oxo-3-(2-phenyldiazan-2-id-1-ylidene)cyclohexa-1,4-dien-1-yl]diazanide (1:2:1:1)