[{"from": "human", "value": "What can you tell me about this molecule? [C][C][C][NH2+1][C@@H1][Branch1][Ring2][C][Ring1][=Branch1][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is the zwitterion of L-pipecolic acid formed by proton transfer from the carboxy group to nitrogen; major species at pH 7.3. It is a tautomer of a L-pipecolic acid."}]