Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of agrochemicals and bioactive molecules. Its sulfonyl chloride group readily reacts with amines and alcohols, making it valuable for introducing the 5-(trifluoromethyl)pyridine moiety into larger structures. This functionality is often exploited in the creation of herbicides and insecticides due to the enhanced metabolic stability and lipophilicity provided by the trifluoromethyl and pyridine groups. It is also employed in medicinal chemistry for constructing sulfonamide-based compounds with potential therapeutic activity.