[{"from": "human", "value": "Describe this molecule. [C][Branch1][Ring2][C][C][NH3+1][C][C][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is zwitterionic form of 5-aminopentanoic acid having an anionic carboxy group and a protonated amino group. It is a tautomer of a 5-aminopentanoic acid."}]