[{"from": "human", "value": "Describe this molecule. [C][=C][C][=Branch1][=Branch2][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][Cl][N][C][=Branch1][C][=O][O][C][C][#C][C][Cl]"}, {"from": "gpt", "value": "The molecule is a carbamate ester that is 4-chlorobut-2-yn-1-yl ester of N-(3-chlorophenyl)carbamic acid. A herbicide, it is no longer approved for use within the European Community. It has a role as a herbicide. It is a carbamate ester, an acetylenic compound and a member of monochlorobenzenes."}]