title: A simple chemical method for labelling phosphatidylcholine and sphingomyelin in the choline moiety.
mesh_terms: D002247:Carbon Isotopes; D007259:Infrared Rays; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008745:Methylation; D010713:Phosphatidylcholines / Q000138:chemical synthesis; D013057:Spectrum Analysis; D013109:Sphingomyelins / Q000138:chemical synthesis
chemical_list: D002247:Carbon Isotopes; D010713:Phosphatidylcholines; D013109:Sphingomyelins