33773-63-6 Cuprate(4-), (5-(acetylamino)-4-(hydroxy-kappaO)-3-((1-(hydroxy-kappaO)-6-sulfo-8-((2-(sulfooxy)ethyl)sulfonyl)-2-naphthalenyl)azo-kappaN1)-2,7-naphthalenedisulfonato(6-))-, tetrahydrogen EINECS 251-673-4 Tetrahydrogen (5-acetamido-4-hydroxy-3-((1-hydroxy-6-sulpho-8-((2-(sulphooxy)ethyl)sulphonyl)-2-naphthyl)azo)naphthalene-2,7-disulphonato(6-))cuprate(4-)