[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is the conjugate base of N-(carboxymethyl)-D-alanine having anionic carboxy groups and a cationic amino group; major species at pH 7.3. It is a conjugate base of a N-(carboxymethyl)-D-alanine."}, {"from": "gpt", "value": "[C][C@H1][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH2+1][C][C][=Branch1][C][=O][O-1]"}]