68140-31-8 Cuprate(3-), (mu-(3-((3,3'-di(hydroxy-kappaO)-4'-((2-(hydroxy-kappaO)-8-hydroxy-6-sulfo-1-naphthalenyl)azo-kappaN1)(1,1'-biphenyl)-4-yl)azo-kappaN1)-4-(hydroxy-kappaO)-5-hydroxy-2,7-naphthalenedisulfonato(7-)))di-, trisodium EINECS 268-788-0 Trisodium (mu-(3-((4'-((2,8-dihydroxy-6-sulpho-1-naphthyl)azo)-3,3'-dihydroxy(1,1'-biphenyl)-4-yl)azo)-4,5-dihydroxynaphthalene-2,7-disulphonato(7-)))dicuprate(3-)