SMILES: CC(CC(=O)[O-])[NH3+]
Description: The molecule is an amino acid zwitterion that is 3-aminobutanoic acid in which a proton has been transferred from the carboxy group to the amino group. It is the major species at pH 7.3. It is a conjugate acid of a 3-aminobutyrate. It is a tautomer of a 3-aminobutanoic acid.