1,4-Dimethyl-2-ethenylbenzene 1,4-Dimethyl-2-vinylbenzene 2,5-Dimethylstyrene 2039-89-6 Benzene, 2-ethenyl-1,4-dimethyl- NSC73477 Styrene, 2,5-dimethyl- WLN: 1U1R B1 E1