SMILES: CC(=O)[C@@H](C(=O)[O-])N
Description: The molecule is a 3-oxo monocarboxylic acid anion and a L-alpha-amino acid anion. It derives from a butyrate. It is a conjugate base of a L-2-amino-3-oxobutanoic acid and a L-2-amino-3-oxobutanoic acid zwitterion.