[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is conjugate acid of beta-alanyl-dopamine; major microspecies at pH 7.3."}, {"from": "gpt", "value": "[C][=C][C][=Branch2][Ring1][Ring1][=C][Branch1][#C][C][=C][Ring1][=Branch1][C][C][N][C][=Branch1][C][=O][C][C][NH3+1][O][O]"}]