[{"from": "human", "value": "Could you provide a description of this molecule? [C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][Br]"}, {"from": "gpt", "value": "The molecule is a member of the class of benzyl bromides that is toluene substituted on the alpha-carbon with bromine. It has a role as a lachrymator."}]