55668-56-9 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)-4-nitrophenyl)azo-kappaN1)-2-naphthalenolato(2-)-kappaO)-, hydrogen Cobaltate(1-), (2,4-dihydro-4-((2-hydroxy-5-nitrophenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphthalenolato)-, hydrogen EINECS 259-746-2 Hydrogen (2,4-dihydro-4-((2-hydroxy-5-nitrophenyl)azo)-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-))(1-((2-hydroxy-4-nitrophenyl)azo)-2-naphtholato(2-))cobaltate(1-)