[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][C][Branch1][=Branch2][O][S][Ring1][=Branch1][=Branch1][C][=O][=O][Branch1][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O]"}, {"from": "gpt", "value": "The molecule is a pH indicator commonly used in cell biology laboratories. Phenolsulfonphthalein is being investigated for use clinically due to its weak estrogen mimicking actions."}]