[{"from": "human", "value": "Provide a description of this molecule. [C][Branch1][=Branch1][C][S][C][C][Cl][S][C][C][Cl]"}, {"from": "gpt", "value": "The molecule is a chemical weapon related to sulfur mustard (mustard gas) and is expected to react in a similar fashion. See the chemical datasheet for sulfur mustard for more information."}]