[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=C][C][=Branch1][N][=C][Branch1][Branch2][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][N][C][=Branch1][C][=O][C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH3+1]"}, {"from": "gpt", "value": "The molecule is zwitterionic form of 3-hydroxy-D-kynurenine arising from transfer of a proton from the carboxy to the amino group; major microspecies at pH 7.3 It is an enantiomer of a 3-hydroxy-L-kynurenine zwitterion."}]