76762-27-1 Disodium (5-((1-(anilinocarbonyl)-2-oxopropyl)azo)-4-hydroxy-3-nitrobenzenesulphonato(3-))(2-((2-hydroxy-5-nitrophenyl)azo)-3-oxo-N-phenylbutyramidato(2-))cobaltate(2-) EINECS 278-545-0