2-Naphthalenesulfonic acid, 5,5'-[4,4'-biphenylylenebis(azo)]bis[6-amino-4-hydroxy-, disodium salt 2-Naphthalenesulfonic acid, 5,5'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis[6-amino-4-hydroxy-, disodium salt 2586-60-9 Airedale Violet ND Amanil Fast Violet N Atlantic Violet N Atul Direct Violet N Azocard Violet N Bencidal Fast Violet N Benzanil Violet N Benzo Violet N Brasilamina Violet 3R C.I. 22570 C.I. Direct Violet 1 C.I. Direct Violet 1, disodium salt Calcomine Violet N Chlorazol Violet N Cotton Violet R Diamine Violet N Diaphtamine Violet N Diazine Violet N Diazol Violet N Direct Brilliant Violet 2R Direct Fast Violet MN Direct Fast Violet N Direct Violet C Direct Violet FR Direct Violet N Erie Violet 3R Fixanol