The molecule is an L-alpha-amino acid zwitterion that is allin in which a proton has been transferred from the carboxy group to the amino group. It is the major species at pH 7.3. It has a role as an antimicrobial agent, an antioxidant, a cardioprotective agent, a neuroprotective agent and a plant metabolite. It is a tautomer of an alliin.
(2R)-2-azaniumyl-3-[(S)-prop-2-enylsulfinyl]propanoate