SMILES: CC(=O)N[C@@H](CC[NH3+])C(=O)[O-]
Description: The molecule is an amino acid zwitterion obtained by transfer of a proton from the amino to the carboxy group of (2S)-2-acetamido-4-aminobutanoic acid; major species at pH 7.3. It is a tautomer of a (2S)-2-acetamido-4-aminobutanoic acid.