Used as a key intermediate in the synthesis of sulfonylurea herbicides, particularly in the production of highly effective rice field herbicides. It plays a critical role in controlling broadleaf and sedge weeds in paddy crops due to its ability to inhibit acetolactate synthase (ALS), an essential enzyme in branched-chain amino acid synthesis in plants. Its structural features enable high selectivity and potency at low application rates, making it valuable in modern agricultural chemistry for developing next-generation herbicides with improved environmental and safety profiles.