Used primarily as a building block in organic synthesis, especially in the preparation of sulfonamide derivatives with potential biological activity. It is employed in medicinal chemistry to introduce the furan-3-sulfonyl group into target molecules, enhancing their pharmacokinetic properties or binding affinity. Commonly utilized in the development of pharmaceuticals and agrochemicals due to its reactivity toward amines and alcohols, enabling the formation of sulfonate esters and sulfonamides. Its aromatic furan ring contributes to electron-rich character, useful in cross-coupling reactions and heterocyclic chemistry.