sodium 1-amino-9,10-dihydro-4-[5-[(2-hydroxyethyl)sulphamoyl]-3,4-xylidino]-9,10-dioxoanthracene-2-sulphonate; 2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-4-3-(2-hydroxyethyl)aminosulfonyl-4,5-dimethylphenylamino-9,10-dioxo-, monosodium salt; Blue 4RL; Nylosan Blue E-4R; Taitilon Blue GLF-T; Triacid Fast Blue 4RL.; Weak Acid Brilliant Blue 4R; 1-Amino-9,10-dihydro-4-[[5-[[(2-hydroxyethyl)amino]sulfonyl]-3,4-dimethylphenyl]amino]-9,10-dioxo-2-anthracenesulfonic acid sodium salt