Synonyms: Cobaltate(1-), (2,4-dihydro-4-(2-(2-(hydroxy-kappaO)-5-nitrophenyl)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)benzenesulfonamidato(2-))-, sodium (1:1);Cobaltate(1-), (2,4-dihydro-4-((2-hydroxy-5-nitrophenyl)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-hydroxybenzenesulfonamidato(2-))-, sodium;Cobaltate(1-), (2,4-dihydro-4-((2-(hydroxy-kappaO)-5-nitrophenyl)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)benzenesulfonamidato(2-))-, sodium;cobalt(3+) sodium 5-methyl-3-oxo-4-[(6-oxo-3-sulfamoylcyclohexa-2,4-dien-1-ylidene)diazanidyl]-2-phenyl-2,3-dihydropyrazol-1-ide ({3-[(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinylidene]-4-oxocyclohexa-1,5-dien-1-yl}imino)dioxidanide (1:1:1:1)