[{"from": "human", "value": "Please give me some details about this molecule. [C][C][Branch1][Ring2][C][197Hg][Cl][O][C]"}, {"from": "gpt", "value": "The molecule is chlormerodrin containing the radioactive isotope (197)Hg. It was formerly used as a diagnostic aid in determination of renal function. It has a role as a radioactive imaging agent. It is a chlormerodrin and an isotopically modified compound."}]