[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][=Branch1][Ring1][=N][O][Branch1][C][Cl][Cl]"}, {"from": "gpt", "value": "The molecule is a synthetic nettle agent developed in Germany in 1929 as a potential chemical warfare agent that causes corrosive skin and tissue injuries. It is characterized as a colorless crystalline solid or yellowish-brown liquid that is odorless or has a fruity odor. Exposure occurs by inhalation, ingestion, or contact."}]