Used primarily as an intermediate in the synthesis of chlorothalonil, a broad-spectrum fungicide widely applied in agriculture to protect crops such as peanuts, potatoes, and fruits from fungal diseases. It plays a key role in the production of plant protection agents due to its ability to contribute to the stability and biocidal activity of the final compound. Also finds use in the development of certain herbicides and industrial antimicrobials for material preservation, including in paints and wood treatments to prevent mold and mildew growth.