Used as an intermediate in the synthesis of agrochemicals and pharmaceuticals, particularly in the development of herbicides and insecticides. Its sulfonyl chloride group readily reacts with nucleophiles, making it valuable for constructing sulfonamide linkages found in bioactive molecules. It is also employed in the preparation of pyridine-based derivatives that exhibit antimicrobial or antifungal activity. Its chloro and sulfonyl functionalities allow for selective modifications, enabling fine-tuning of chemical properties in drug discovery and crop protection agents.