Used as a key intermediate in carbohydrate chemistry, particularly in the synthesis of complex oligosaccharides and glycoconjugates. Its selectively protected hydroxyl groups allow for controlled glycosylation reactions, making it valuable in the preparation of biologically active sugar derivatives. The tert-butyldiphenylsilyl (TBDPS) groups provide robust protection for primary alcohols, enabling stepwise construction of polysaccharide chains with high stereocontrol. Commonly employed in the development of vaccine candidates, especially those targeting bacterial pathogens where galactose-containing epitopes are relevant. Also utilized in the synthesis of natural products and glycomimetic drugs.