[{"from": "human", "value": "Provide a brief overview of this molecule. [C][=C][C][=Branch1][=N][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][C][=Branch1][C][=O][Cl]"}, {"from": "gpt", "value": "The molecule is a yellow to brown liquid. Unstable at room temperatures; requires refrigeration when not in use."}]