SMILES: CC(=O)NCCCC[C@@H](C(=O)[O-])[NH3+]
Description: The molecule is an amino acid zwitterion obtained via transfer of a proton from the carboxy to the amino group of N(6)-acetyl-L-lysine; major species at pH 7.3. It is a tautomer of a N(6)-acetyl-L-lysine.