[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is an amino acid zwitterion resulting from transfer of a proton from the carboxy to the amino group of N,N-dimethylglycine; major species at pH 7.3. It is a tautomer of a N,N-dimethylglycine."}, {"from": "gpt", "value": "[C][NH1+1][Branch1][C][C][C][C][=Branch1][C][=O][O-1]"}]