[{"from": "human", "value": "Based on the given information, design a molecule that meets the desired specifications. The molecule is the conjugate base of 2-nitrophenol; major apecies at pH 7.3. It is a conjugate base of a 2-nitrophenol."}, {"from": "gpt", "value": "[C][=C][C][=C][Branch1][N][C][=Branch1][Ring2][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][O-1]"}]