72479-32-4 Cuprate(2-), (3-((2-(hydroxy-kappaO)-4-hydroxy-5-((4-nitrophenyl)azo)-3-((4-((4-nitro-2-sulfophenyl)amino)phenyl)azo)phenyl)azo-kappaN1)-4-(hydroxy-kappaO)-5-nitrobenzenesulfonato(4-))-, disodium Disodium (3-((2,4-dihydroxy-5-((4-nitrophenyl)azo)-3-((4-(4-nitro-2-sulphoanilino)phenyl)azo)phenyl)azo)-4-hydroxy-5-nitrobenzenesulphonato(4-))cuprate(2-) EINECS 276-679-4