Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its structure allows for selective functionalization in complex molecule assembly, particularly in the development of fluorinated compounds with enhanced metabolic stability. Commonly employed in the preparation of sulfonamide derivatives, which are key motifs in bioactive molecules. Also utilized in the manufacture of crop protection agents due to the combined presence of chlorine and fluorine, which can improve lipophilicity and target binding. Suitable for reactions requiring sulfonyl chloride coupling, such as in the formation of sulfonate esters or sulfonamides under mild conditions.