1,4-Dimethyl-2-ethenylbenzene 1,4-Dimethyl-2-vinylbenzene 2,5-DIMETHYLSTYRENE 2039-89-6 4-05-00-01385 (Beilstein Handbook Reference) BRN 2203656 Benzene, 2-ethenyl-1,4-dimethyl- (9CI) EINECS 218-028-9 NSC 73477 Styrene, 2,5-dimethyl-