68039-64-5 Cuprate(3-), (mu-(3-((3,3'-di(hydroxy-kappaO)-4'-((1-(hydroxy-kappaO)-4-sulfo-2-naphthalenyl)azo-kappaN1)(1,1'-biphenyl)-4-yl)azo-kappaN1)-4-(hydroxy-kappaO)-5-hydroxy-2,7-naphthalenedisulfonato(7-)))di-, trisodium EINECS 268-270-4 Trisodium (mu-(3-((3,3'-dihydroxy-4'-((1-hydroxy-4-sulpho-2-naphthyl)azo)(1,1'-biphenyl)-4-yl)azo)-4,5-dihydroxynaphthalene-2,7-disulphonato(7-)))dicuprate(3-)