[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][C][C][O][C][=Branch1][C][=O][C][Branch1][C][C][O][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][C][=N][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][Branch1][C][F][Branch1][C][F][F]"}, {"from": "gpt", "value": "The molecule is an aryloxyphenoxypropionic herbicide used for postemergence control of annual and perennial grass weeds. This substance is a derivative of fluazifop. Fluazifop-butyl is a different compound than either fluazifop or fluazifop-p-butyl. Both the chemical structures and the toxicities of these compounds are different. Fluazifop-p-butyl formulations can contain some fluazifop-butyl."}]