SMILES: C1=CC=C(C(=C1)C(=O)C[C@@H](C(=O)[O-])[NH3+])N
Description: The molecule is zwitterionic form of L-kynurenine arising from transfer of a proton from the carboxy to the amino group; major species at pH 7.3. It is a tautomer of a L-kynurenine.