72828-84-3 Benzenesulfonic acid, 3,3'-(carbonylbis(imino(2-((2-hydroxyacetyl)amino)-4,1-phenylene)azo))bis(6-methyl-, disodium salt Disodium 4,4'-(carbonylbis(imino(2-((2-hydroxyacetyl)amino)-4,1-phenylene)azo))bis(toluene-2-sulphonate) EINECS 276-891-7