[{"from": "human", "value": "Could you provide a description of this molecule? [C][C][Branch1][=Branch2][NH1+1][=C][Branch1][Ring2][S][Ring1][Branch1][N][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "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."}]