83221-79-8 2-[[2-amino-5-hydroxy-6-[[4'-[(2-hydroxy-6-sulpho-1-naphthyl)azo-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-7-sulpho-1-naphthyl]azo]-5-nitrobenzoic acid, sodium salt
83249-25-6 4,4'-((3,3'-DICHLORO(1,1'-BIPHENYL)-4,4'-DIYL)BIS(AZO))BIS(3-AMINONAPHTHALENE-2,7-DISULFONIC) ACID,SODIUM SALT