83783-97-5 7,7'-(carbonyldiimino)bis[4-hydroxy-3-[(6-sulpho-2-naphthyl)azo]naphthalene-2-sulphonic] acid, lithium sodium salt, compound with 2,2'-(methylimino)diethanol
83783-95-3 3,3'-[vinylenebis[(3-sulpho-p-phenylene)azo]]bis[6-amino-4-hydroxynaphthalene-2-sulphonic] acid, lithium sodium salt , compound with 2,2'-(methylimino)diethanol