1-(beta-Phenethyl)-4-piperidone 1-(beta-Phenethyl)piperidone 1-Phenethyl-4-piperidone 39742-60-4 4-Piperidinone, 1-(2-phenylethyl)- 4-Piperidone, 1-phenethyl- 5-21-06-00425 (Beilstein Handbook Reference) BRN 0130302 EINECS 254-613-5 NSC 74494