Used as a key intermediate in the synthesis of herbicidal compounds, particularly in the development of acetolactate synthase (ALS) inhibitors. These herbicides are effective in controlling broadleaf and grassy weeds in crops such as rice, wheat, and corn. Its structure allows for selective activity and high potency at low application rates, making it valuable in modern agricultural chemistry. It is also utilized in research for developing new isonicotinic acid derivatives with improved environmental and safety profiles.