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
83006-43-3 7-amino-4-hydroxy-3-[[4-[(4-nitro-2-sulphophenyl)amino]phenyl]azo]naphthalene-2-sulphonic acid, sodium salt