[{"from": "human", "value": "Describe this molecule. [C][=C][Branch1][=C][C][=C][Branch1][=Branch2][C][=Branch1][Branch1][=C][Ring1][=Branch1][Br][O][Br][C][#N]"}, {"from": "gpt", "value": "The molecule is a chemical compound of cyanide that is used as a herbicide. It is not permitted for homeowner use and is used for mainly for post-emergent control of annual broadleaf weeds. It is especially effective in the control of weeds in cereal, corn, sorghum, onions, flax, mint, turf, and on non-cropland. It works by inhibiting photosynthesis. (L594)"}]