2:1 Complex of 1-(3-aminosulfonylphenyl)-4-((2-hydroxy-5-nitrophenyl)azo)-3-methyl-5-oxo-4,5-dihydro-1H-pyrazol and cobalt, sodium salt 85187-58-2 Cobaltate(1-), bis(3-(4,5-dihydro-4-((2-(hydroxy-kappaO)-5-nitrophenyl)azo-kappaN1)-3-methyl-5-(oxo-kappaO)-1H-pyrazol-1-yl)benzenesulfonamidato(2-))-, sodium EINECS 286-145-2 Sodium bis(3-(4,5-dihydro-4-((2-hydroxy-5-nitrophenyl)azo)-3-methyl-5-oxo-1H-pyrazol-1-yl)benzenesulphonamidato(2-))cobaltate(1-)