12769-08-3 19761-56-9 37311-13-0 69121-17-1 C.I. Reactive Violet 4 Cuprate(3-), (5-(acetylamino)-4-(hydroxy-kappaO)-3-((2-(hydroxy-kappaO)-5-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo-kappaN1)-2,7-naphthalenedisulfonato(5-))-, trisodium EINECS 235-807-9 Trisodium (5-acetamido-4-hydroxy-3-((2-hydroxy-5-((2-(sulphooxy)ethyl)sulphonyl)phenyl)azo)naphthalene-2,7-disulphonato(5-))cuprate(3-)