83006-39-7 o-[[1-hydroxy-6-[[[[2-methoxy-5-methyl-4-[[8-[(phenylsulphonyl)oxy]-3,6-disulpho-1-naphthyl]azo]phenyl]amino]carbonyl]amino]-3-sulpho-2-naphthyl]azo]benzoic acid, sodium salt
83006-78-4 5-[(4-anilino-5-sulpho-1-naphthyl)azo]-4-hydroxynaphthalene-2,7-disulphonic acid, ammonium sodium salt