Used as a key intermediate in the synthesis of sulfonylurea herbicides, particularly in the production of highly effective rice field herbicides. Its structure enables selective weed control by inhibiting acetolactate synthase (ALS) enzyme in plants, disrupting branched-chain amino acid synthesis. Due to its trifluoroethoxy and methylsulfonyl groups, it offers enhanced herbicidal activity, improved soil persistence, and selectivity between crops and weeds. Commonly employed in pre- and post-emergent applications to control broadleaf and sedge species in paddy fields.