Used as an intermediate in the synthesis of biologically active compounds, particularly in the development of agrochemicals and pharmaceuticals. Its reactive sulfonyl chloride group allows for easy derivatization, enabling the formation of sulfonamides and sulfonate esters that are key structural motifs in herbicides and plant growth regulators. It is also employed in the preparation of functional materials for electronic applications due to the presence of conjugated thiophene and electron-withdrawing thiadiazole rings, which contribute to charge transport properties in organic semiconductors.