3-PHENYL-4-PENTENAL 3-Phenyl-3-vinylpropionaldehyde 3-Phenylpent-4-enal 939-21-9 Benzenepropanal, beta-ethenyl- EINECS 213-356-9 FEMA No. 3318 Hydrocinnamaldehyde, beta-vinyl- beta-Ethenylbenzenepropanal beta-Vinylhydrocinnamaldehyde