86457-84-3

Trisodium (4-((4'-((7-anilino-1-hydroxy-3-sulpho-2-naphthyl)azo)-3'-hydroxy-3-methoxy(1,1'-biphenyl)-4-yl)azo)-3-hydroxynaphthalene-2,7-disulphonato(5-))cuprate(3-)