SMILES: C=C(C[C@@H](C(=O)[O-])[NH3+])Cl
Description: The molecule is an L-alpha-amino acid zwitterion obtained from L-2-amino-4-chloropent-4-enoic acid by transfer of a proton from the carboxy group to the amino group. It is the major species at pH 7.3. It is a tautomer of a L-2-amino-4-chloropent-4-enoic acid.