disodium 4,4'-[carbonylbis[imino[2-[(2-hydroxyacetyl)amino]-4,1-phenylene]azo]]bis[toluene-2-sulphonate]

3,3'-[Carbonylbis[imino[2-[(2-hydroxyacetyl)amino]-4,1-phenylene]azo]]bis[6-methylbenzenesulfonic acid]disodium salt

Benzenesulfonic acid, 3,3'-[carbonylbis [imino[2-[(2-hydroxyacetyl)amino]-4,1-phenylene]azo]]bis[6-methyl-, disodium salt