Synonyms: Benzoxazole,2,2'-vinylenebis[5-methyl- (6CI,8CI);1,2-Bis(5-methyl-2-benzoxazolyl)ethene;1,2-Bis(5-methyl-2-benzoxazolyl)ethylene;1,2-Bis(5'-methyl-2'-benzoxazolyl)ethylene;2,2'-(1,2-Ethenediyl)bis[5-methylbenzoxazole];2,2'-Vinylenebis[5-methylbenzoxazole];C.I. 481520;C.I. Fluorescent Brightener135;C.I. Fluorescent Brightening Agent 135;Fluorescent Brightener 135;HakkolSTR;Uvitex ERN;Uvitex ERN CONC P;Uvitex ERN-P;Whitex ERN;a,b-Di(5-methylbenzoxazol-2-yl)ethene;