1-((Dimethylamino)acetyl)-4-phenyl-4-piperidinecarboxaldehyde 3091 I.S. 4-Piperidinecarboxaldehyde, 1-((dimethylamino)acetyl)-4-phenyl- 5-21-08-00150 (Beilstein Handbook Reference) 97020-65-0 BRN 1542443