Synonyms: 2,2'-Stilbenedisulfonicacid,4,4'-bis[[4-[(2-hydroxyethyl)amino]-6-(m-sulfoanilino)-s-triazin-2-yl]amino]-,tetrasodium salt (8CI); Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-[[4-[(2-hydroxyethyl)amino]-6-[(3-sulfophenyl)amino]-1,3,5-triazin-2-yl]amino]-,tetrasodium salt (9CI); BLT; BLT (brightener); C.I. 406233; C.I. FluorescentBrightener 114; C.I. Fluorescent Brightener 251; C.I. Fluorescent BrighteningAgent 114; CAS; Fluorescent Brightener 114; Fluorescent Brightener 251;Heliofor CAF; Heliofor CAS; Phorwite BBU; Tinopal 2BT; Ultraphor GPB; Uvitex2BT; Wobital BBK