title: Occurrence of N-isobutyl eicosa-trans-2-trans-4-dienamide in Piper nigrum.
mesh_terms: D000577:Amides / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D010880:Piperidines / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000032:analysis*
chemical_list: D000577:Amides; D010880:Piperidines