[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a beta-amino-acid anion that is the conjugate base of beta-alanine. It has a role as a fundamental metabolite. It is a conjugate base of a beta-alanine."}, {"from": "gpt", "value": "[C][Branch1][Ring1][C][N][C][=Branch1][C][=O][O-1]"}]