Acid Blue 277

acid blue 277 ; nylosan blue e-4r ; blue 4rl ; weak acid brilliant blue 4r ; triacid fast blue 4rl. ; taitilon blue glf-t ; 1-amino-9,10-dihydro-4-[[5-[[(2-hydroxyethyl)amino]sulfonyl]-3,4-dimethylphenyl]amino]-9,10-dioxo-2-anthracenesulfonic acid sodium salt ; 2-anthracenesulfonic acid, 1-amino-9,10-dihydro-4-3-(2-hydroxyethyl)aminosulfonyl-4,5-dimethylphenylamino-9,10-dioxo-, monosodium salt ; sodium 1-amino-9,10-dihydro-4-[5-[(2-hydroxyethyl)sulphamoyl]-3,4-xylidino]-9,10-dioxoanthracene-2-sulphonate