SMILES: C1=CC=C(C=C1)C[C@H](C(=O)[O-])[NH3+]
Description: The molecule is a D-alpha-amino acid zwitterion that is D-phenylalanine 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 an enantiomer of a L-phenylalanine zwitterion. It is a tautomer of a D-phenylalanine.