Used in carbohydrate chemistry research as a key intermediate for synthesizing thiosugars and modified sugar derivatives. Its thio group enables formation of glycosidic bonds resistant to enzymatic degradation, making it valuable in developing glycosidase inhibitors and antimicrobial agents. Commonly employed in the preparation of thioglycoside donors for oligosaccharide assembly. Also applied in medicinal chemistry for designing analogs of biologically active sugars with improved metabolic stability.