[{"from": "human", "value": "Provide a brief overview of this molecule. [C][N][Branch1][C][C][C][=Branch1][C][=O][N][C][=C][C][=Branch1][=Branch2][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][Cl][Cl]"}, {"from": "gpt", "value": "The molecule is an herbicide in the urea chemical family that inhibits photosynthesis. It was introduced by Bayer in 1954 under the trade name of Diuron. DCMU is a very specific and sensitive inhibitor of photosynthesis, the process by which plants use light, water, and carbon di-oxide from the atmosphere to form plant sugars and cellulose. Diuron blocks electron transport at a critical point in this process. It blocks the plastoquinone binding site of photosystem II, disallowing the electron flow from where it is generated, in photosystem II, to plastoquinone. This interrupts the photosynthetic electron transport chain in photosynthesis and thus reduces the ability of the plant to turn light energy into chemical energy (ATP and reductant potential)."}]