1-Propanoylpiperidine 1-Propionylpiperidine 14045-28-4 5-20-02-00443 (Beilstein Handbook Reference) AI3-36633 BRN 0111498 N-Pentamethylenepropionamide N-Propionylpiperidin [German] PIPERIDINE, 1-PROPIONYL Piperidine, 1-(1-oxopropyl)- (9CI)