SMILES: C[C@H](C(=O)[O-])[NH2+][C@@H](CCCC[NH3+])C(=O)[O-]
Description: The molecule is a D-alpha-amino acid zwitterion that is D-lysopine arising from transfer of two protons from the carboxy to the amino groups; the major species at pH 7.3. It is a tautomer of a D-lysopine.