[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][O][C][=Branch1][C][=O][C][Branch1][C][C][O][C][=Branch1][C][=O][C][=C][Branch2][Ring1][#C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][O][C][=C][Branch1][P][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][Branch1][C][F][Branch1][C][F][F][Cl][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a complex ester of acifluorfen and is a nitrophenyl ether selective herbicide. It is used in postemergence applications to certain crops which are resistant to its action. The name 'Lactofen' is approved by the American National Standards Institute and the Weed Science Society of America, and is also approved in China (\u4e73\u6c1f\u79be\u8349\u7075)."}]