[{"from": "human", "value": "What can you tell me about this molecule? [C][C][=N][C][=Branch1][#Branch2][=N][C][=Branch1][Ring2][=N][Ring1][=Branch1][O][C][N][Branch1][C][C][C][=Branch1][C][=O][N][S][=Branch1][C][=O][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][C]"}, {"from": "gpt", "value": "The molecule is the methyl ester of the sulfonylurea herbicide tribenuron and also the form in which tribenuron is used in pesticides. It is used in the cultivation of cereals to combat broadleaf weeds. Similar to other sulfonylureas, the site of action of Tribenuron-methyl is acetolactate synthase (ALS), an enzyme involved in branched-chain amino acid biosynthesis. Sulfonylurea herbicides were discovered by DuPont in 1975 and marketed for the first time in 1982."}]