Synonyms: 1,4-Benzenedisulfonicacid,2,2'-[1,2-ethenediylbis[(3-sulfo-4,1-phenylene)imino[6-[bis(2-hydroxyethyl)amino]-1,3,5-triazine-4,2-diyl]imino]]bis-,hexasodium salt (9CI); Belofor 25-12; Blancofor BSU; Blankophor BSU; BlankophorBSU-PN 01; C.I. 406235; C.I. Fluorescent Brightener 264; Fluorescent Brightener264; Phorwite UW; Phorwite UW Liquid; Rylux BSU