Used as a key intermediate in the synthesis of PEGylated compounds, enhancing drug solubility and stability. Commonly employed in bioconjugation processes to link active pharmaceutical ingredients with polyethylene glycol chains, improving pharmacokinetic profiles. Also applied in the development of functionalized polymers for drug delivery systems and biomedical materials. Its terminal hydroxyl group allows for easy modification and coupling reactions, making it valuable in creating tailored macromolecules for therapeutic and diagnostic applications.