12217-70-8 12731-55-4 15380-70-8 15418-16-3 50978-26-2 56748-14-2 C.I. Direct Red 83 Cuprate(4-), (mu-((7,7'-(carbonyldiimino)bis(4-(hydroxy-kappaO)-3-((2-(hydroxy-kappaO)-5-sulfophenyl)azo-kappaN1)-2-naphthalenesulfonato))(8-)))di-, tetrasodium Cuprate(4-), (mu-((7,7'-(carbonyldiimino)bis(4-hydroxy-3-((2-hydroxy-5-sulfophenyl)azo)-2-naphthalenesulfonato))(8-)))di-, tetrasodium EINECS 239-429-5 Tetrasodium (mu-((7,7'-(carbonyldiimino)bis(4-hydroxy-3-((2-hydroxy-5-sulphophenyl)azo)naphthalene-2-sulphonato))(8-)))dicuprate(4-)