[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C][Branch1][=Branch1][C][=Branch1][C][=O][O][O][C][=C][Branch1][#Branch2][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Cl][Cl]"}, {"from": "gpt", "value": "The molecule is a chlorophenoxy herbicide similar in structure to 2,4-D that is used to kill annual and perennial broadleaf weeds. It is a component of many common weedkillers. About 4 million pounds of dichlorprop are used annually in the United States. (L369)"}]