13011-62-6 15977-60-3 52012-11-0 Cobaltate(1-), bis(2-((2-(hydroxy-kappaO)-5-nitrophenyl)azo-kappaN1)-3-(oxo-kappaO)-N-phenylbutanamidato(2-))-, hydrogen EINECS 235-861-3 Hydrogen bis(2-((2-hydroxy-5-nitrophenyl)azo)-3-oxo-N-phenylbutyramidato(2-))cobaltate(1-)