Synonyms: Chromate(1-), bis(2,4-dihydro-4-((2-(hydroxy-kappaO)nitrophenyl)azo-kappaN1)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)-kappaO3)-, sodium;Chromate(1-), bis(2,4-dihydro-4-((2-hydroxynitrophenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))-, sodium;Chromate(1-), bis(2,4-dihydro-4-(2-(2-(hydroxy-kappaO)nitrophenyl)diazenyl-kappaN1)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)-kappaO3)-, sodium (1:1);Sodium bis(2,4-dihydro-4-((2-hydroxynitrophenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))chromate(1-)