title: Synthesis of 19,20-di-nor-9-keto-8 (12)-prostenoic acid.
mesh_terms: D002849:Chromatography, Gas; D005227:Fatty Acids; D005374:Filtration; D007259:Infrared Rays; D008041:Linoleic Acids; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D011453:Prostaglandins / Q000138:chemical synthesis*; D014466:Ultraviolet Rays
chemical_list: D005227:Fatty Acids; D008041:Linoleic Acids; D011453:Prostaglandins