89899-28-5

Trisodium (-(8-((4'-((6-benzamido-1-hydroxy-3-sulpho-2-naphthyl)azo)-3,3'-dihydroxy(1,1'-biphenyl)-4-yl)azo)-7-hydroxynaphthalene-1,3-disulphonato(7-)))dicuprate(3-)