SMILES: CSCCC[C@@H](C(=O)[O-])[NH3+]
Description: The molecule is an L-alpha-amino acid zwitterion obtained by transfer of a proton from the carboxy to the amino group of any L-polyhomomethionine; major species at pH 7.3. It is a L-alpha-amino acid zwitterion and a sulfur-containing amino-acid anion. It is a tautomer of a L-polyhomomethionine.