[{"from": "human", "value": "Provide a brief overview of this molecule. [C][O][C][Branch2][Ring1][=Branch1][C][N][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][O][C][C][=Branch1][C][=O][O][C][Hg].[O]"}, {"from": "gpt", "value": "The molecule is the sodium salt form of mersalyl acid, a mercurial diuretic. Mersalyl acid has been replaced by less toxic non-mercury containing diuretics."}]