Used as an intermediate in organic synthesis, particularly in the development of pharmaceuticals. It serves as a building block for heterocyclic compounds due to the presence of both sulfur and nitrogen in the ring, enabling the formation of bioactive molecules. Commonly employed in the synthesis of antiviral and antibacterial agents, as well as in the preparation of enzyme inhibitors. Its ester functionality allows for further chemical modifications, making it valuable in medicinal chemistry for structure-activity relationship studies.