84195-85-7 EINECS 282-393-0 Tetrasodium (mu-(7-((4'-((6-anilino-1-hydroxy-3-sulpho-2-naphthyl)azo)-3,3'-dihydroxy(1,1'-biphenyl)-4-yl)azo)-8-hydroxynaphthalene-1,3,5-trisulphonato(8-)))dicuprate(4-)