Also Called: Cobaltate(1-), [3-[4-[(5-chloro-2-hydroxyphenyl) azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol -1-yl]benzenesulfonamidato(2-)][4-hydroxy-3-[(2-hydrox y-1-naphthalenyl)azo]benzenesulfonamidato(2 -)]-, sodium;Cobaltate(1-), [3-[4-[2-[5-chloro-2-(hydroxy-.kappa.O)phenyl]diazenyl-.kappa.N1]-4,5-dihydro-3-methyl-5-(oxo-.kappa.O)-1H-pyrazol-1-yl]benzenesulfonamidato(2-)][4-(hydroxy-.kappa.O)-3-[2-[2-(hydroxy-.kappa.O)-1-naphthalenyl]diazenyl-.kappa.N1]benzenesulfonamidato(2-)]-, sodium (1:1);Cobaltate(1-), [3-[4-[(5-chloro-2-hydroxyphenyl)azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonamidato(2-)][4-hydroxy-3-[(2-hydroxy-1-naphthalenyl)azo]benzenesulfonamidato(2-)]-, sodium;Cobalt and cobalt compounds