2-PHENYL-2-BUTENAL 2-Phenylcrotonaldehyde 4411-89-6 Benzeneacetaldehyde, alpha-ethylidene- Crotonaldehyde, 2-phenyl- EINECS 224-567-0 FEMA No. 3224 alpha-Ethylidenebenzeneacetaldehyde alpha-Phenylcrotonaldehyde