This chemical is primarily used in organic synthesis as a versatile intermediate for constructing complex molecules. Its structure, featuring a benzyl-protected polyether chain and a tosylate group, makes it valuable in the preparation of polyethylene glycol (PEG) derivatives. These derivatives are widely applied in pharmaceuticals, where PEGylation improves the solubility, stability, and bioavailability of drugs. Additionally, it serves as a key reagent in the development of surfactants, polymers, and other functional materials. Its tosylate group is particularly useful in nucleophilic substitution reactions, enabling the attachment of various functional groups to the polyether chain. This compound is also employed in research for designing drug delivery systems and modifying biomolecules for enhanced performance.