[{"from": "human", "value": "Provide a description of this molecule. [C][C][N][Branch1][#Branch1][C][C][=Branch1][C][=C][C][C][=C][Branch2][Ring1][=Branch1][C][=C][Branch1][#Branch2][C][=C][Ring1][=Branch1][N+1][=Branch1][C][=O][O-1][C][Branch1][C][F][Branch1][C][F][F][N+1][=Branch1][C][=O][O-1]"}, {"from": "gpt", "value": "The molecule is a selective herbicide used for the preemergence control of annual grasses and broadleaf weeds in certain food and feed crops. It is marketed under the trade name Sonalan. Ethalfluralin may be used in growing a variety of grain, seed, and cucurbit crops. The greatest amounts of ethalfluralin are used in growing soybeans, dry beans, and sunflower seeds. Ethalfluralin causes moderate eye irritation and moderate to severe skin irritation, and has been placed in Toxicity Category II. It also is a skin sensitizer. Ethalfluralin otherwise is of relatively low acute toxicity. "}]