Occurrence of S-methyl thioesters in urines of humans after they have eaten asparagus.
Gas chromatography-mass spectrometry was used to determine the odor-causing agent (or agents) present in the urines of humans after they have eaten asparagus. S-Methyl thioacrylate and S-methyl 3-(methylthio)thiopropionate were identified from methylene chloride extracts of such urines and appear to be the odor-causing compounds. Methanethiol, the previously reported odor-causing agent, was not detected in these methylene chloride extracts.
D000179:Acrylates / Q000652:urine; D002849:Chromatography, Gas; D004952:Esters; D006801:Humans; D013058:Mass Spectrometry; D009812:Odorants; D010944:Plants / Q000378:metabolism; D011422:Propionates / Q000652:urine; D013440:Sulfides / Q000652:urine*; D014675:Vegetables
D000179:Acrylates; D004952:Esters; D011422:Propionates; D013440:Sulfides