Synonyms: Cobalt, bis(2-(2-(2-(hydroxy-kappaO)-5-((methylamino)sulfonyl)phenyl)diazenyl-kappaN1)-3-(oxo-kappaO)-N-phenylbutanamidato(2-))-;2-((2-Hydroxy-5-(N-methylsulfonamido)phenyl)azo)-N-phenyl-3-oxobutanamide, cobalt complex (2:1);Bis(2-((2-hydroxy-5-(N-methylsulphamoyl)phenyl)azo)-3-oxo-N-phenylbutyramidato(2-))cobalt;Cobalt, bis(2-((2-(hydroxy-kappaO)-5-((methylamino)sulfonyl)phenyl)azo-kappaN1)-3-(oxo-kappaO)-N-phenylbutanamidato(2-))-;butanimidate, 2-[2-[5-[(methylamino)sulfonyl]-2-olatophenyl]hydrazinylidene]-3-oxo-N-phenyl-, cobalt salt, (1Z,2E)- (2:1)