Used as an intermediate in the synthesis of glycosylation reagents, particularly in the preparation of nitrophenyl glycosides for biochemical assays. Its aldehyde functionality allows for conjugation with amine-containing biomolecules, making it useful in labeling and immobilization techniques for enzymes and antibodies. Commonly applied in diagnostic kits and drug delivery systems where controlled release or targeted binding is required. Also serves as a building block in carbohydrate-based drug discovery due to its protected sugar moiety and reactive handles for further modification.