Synonyms: 2-Anthracenesulfonicacid, 1-amino-4-[[3-(ethenylsulfonyl)phenyl]amino]-9,10-dihydro-9,10-dioxo-,monosodium salt (9CI); 2-Anthracenesulfonic acid,1-amino-9,10-dihydro-9,10-dioxo-4-[m-(vinylsulfonyl)anilino]-, monosodium salt(8CI); Acid Blue 215; C.I. 612001; C.I. Acid Blue 215; Uniblue A sodium salt