Cobaltate, [2-[(2-amino-1-naphthalenyl)azo]-5-nitrophenolato][N-(2-chlorophenyl)-2-[[2-hydroxy-5-[(methyl-amino)sulfonyl]phenyl]azo]-3-oxobutanamidato]-, sodium

sodium [2-[(2-amino-1-naphthyl)azo]-5-nitrophenolato(2-)][N-(2-chlorophenyl)-2-[[2-hydroxy-5-[(methylamino)sulphonyl]phenyl]azo]-3-oxobutyramidato(2-)]cobaltate(1-)