Synonyms: Chromate(1-), (3-(2-(4,5-dihydro-3-methyl-5-(oxo-kappaO)-1-phenyl-1H-pyrazol-4-yl)diazenyl-kappaN1)-4-hydroxybenzenesulfonamidato(2-))(4-(hydroxy-kappaO)-3-(2-(2-(hydroxy-kappaO)-1-naphthalenyl)diazenyl-kappaN1)benzenesulfonamidato(2-))-, hydrogen (1:1);Chromate(1-), (2,4-dihydro-4-((2-hydroxy-5-(aminosulfonyl)phenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))(1-(2-hydroxy-5-(aminosulfonyl)phenyl)azo-2-naphthalenolato)-, hydrogen;Chromate(1-), (3-((4,5-dihydro-3-methyl-5-(oxo-kappaO)-1-phenyl-1H-pyrazol-4-yl)azo-kappaN1)-4-hydroxybenzenesulfonamidato(2-))(4-(hydroxy-kappaO)-3-((2-(hydroxy-kappaO)-1-naphthalenyl)azo-kappaN1)benzenesulfonamidato(2-))-, hydrogen;Hydrogen (3-((4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo)-4-hydroxybenzenesulphonamidato(2-))(4-hydroxy-3-((2-hydroxy-1-naphthyl)azo)benzenesulphonamidato(2-))chromate(1-);chromium(3+) hydrogen 3-methyl-4-[(E)-(2-oxido-5-sulfamoylphenyl)diazenyl]-1-phenyl-1H-pyrazol-5-olate 1-[(E)-(2-oxido-5-sulfamoylphenyl)diazenyl]naphthalen-2-olate (1:1:1:1)