2723 I.S. 4-Fenil-4-formilpiperidina [Italian] 4-Phenyl-4-piperidinecarboxaldehyde 4-Phenylpiperidine-4-carbaldehyde 4-Piperidinecarboxaldehyde, 4-phenyl- 5-21-08-00148 (Beilstein Handbook Reference) 6952-94-9 BRN 1529043 EINECS 230-133-1 NSC 70851