3,3'-[vinylenebis[(3-sulpho-p-phenylene)azo]]bis[6-amino-4-hydroxynaphthalene-2-sulphonic] acid, compound with 2,2',2''-nitrilotriethanol (1:4)

3,3'-[vinylenebis[(3-sulpho-p-phenylene)azo]]bis[6-amino-4-hydroxynaphthalene-2-sulphonic] acid, compound with 2,2',2''-nitrilotriethanol (1:4)

2-Naphthalenesulfonic acid, 3,3'-[1,2-ethenediylbis[(3-sulfo-4,1-p henylene)-2,1-diazenediyl]]bis[6-amino-4 -hydroxy-, compd. with 2,2',2''-nitrilotris[ethanol] (1:4);2-Naphthalenesulfonic acid, 3,3-1,2-ethenediylbis(3-sulfo-4,1-phenylene)azobis6-amino-4-hydroxy-, compd. with 2,2,2-nitrilotrisethanol (1:4);3,3'-[1,2-Ethenediylbis[(3-sulfo-4,1-phenylene)azo]]bis(6-amino-4-hydroxy)-2-naphthalenesulfonic acid compd. with 2,2',2''-nitrilotris(ethanol)(1:4)