[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=Branch1][=N][=C][C][=C][Ring1][=Branch1][N][C][C][=Branch1][C][=O][N][As][=Branch1][C][=O][Branch1][C][O][O-1].[Na+1]"}, {"from": "gpt", "value": "The molecule is a synthetic arsenical drug used to treat trypanosomiasis (African sleeping sickness)."}]