12238-74-3 39453-50-4 6798-03-4 Cuprate(2-), (mu-((7,7'-iminobis(3-((5-(aminosulfonyl)-2-(hydroxy-kappaO)phenyl)azo-kappaN1)-4-(hydroxy-kappaO)-2-naphthalenesulfonato))(6-)))di-, disodium Cuprate(2-), (mu-((7,7'-iminobis(3-((5-(aminosulfonyl)-2-hydroxyphenyl)azo)-4-hydroxy-2-naphthalenesulfonato))(6-)))di-, disodium Disodium (mu-((7,7'-iminobis(4-hydroxy-3-((2-hydroxy-5-sulphamoylphenyl)azo)naphthalene-2-sulphonato))(6-)))dicuprate(2-) EINECS 229-872-2