The molecule is an amino acid zwitterion obtained from 2-amino-Delta(2)-thiazoline-4-carboxylic acid by the transfer of a proton from the carboxy group to the thiazoline nitrogen. The major species at pH 7.3. It is a tautomer of a 2-amino-Delta(2)-thiazoline-4-carboxylic acid.
2-amino-4,5-dihydro-1,3-thiazol-3-ium-4-carboxylate