1-Phenylbut-2-ene 1-Phenylbutene-2 1560-06-1 2-Butene, 1-phenyl- 3-05-00-01207 (Beilstein Handbook Reference) 4-Phenyl-2-butene BRN 2037620 Benzene, 2-butenyl- Benzene, 2-butenyl- (9CI) EINECS 216-328-4 NSC 65602