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