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)(1-(2-(2-(hydroxy-kappaO)-5-nitrophenyl)diazenyl-kappaN1)-2-naphthalenolato(2-)-kappaO)-, hydrogen (1:1);Cobaltate(1-), (2,4-dihydro-4-((2-hydroxy-5-nitrophenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))(1-((2-hydroxy-5-nitrophenyl)azo)-2-naphthalenolato)-, hydrogen;Cobaltate(1-), (2,4-dihydro-4-((2-(hydroxy-kappaO)-5-nitrophenyl)azo-kappaN1)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)-kappaO3)(1-((2-(hydroxy-kappaO)-5-nitrophenyl)azo-kappaN1)-2-naphthalenolato(2-)-kappaO)-, hydrogen;Hydrogen (2,4-dihydro-4-((2-hydroxy-5-nitrophenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))(1-((2-hydroxy-5-nitrophenyl)azo)-2-naphtholato(2-))cobaltate(1-);cobalt(3+) hydrogen ({3-[(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinylidene]-4-oxocyclohexa-1,5-dien-1-yl}imino)dioxidanide 4-nitro-2-[(2-oxonaphthalen-1(2H)-ylidene)diazanidyl]phenolate (1:1:1:1)