This chemical is primarily utilized in organic synthesis as a versatile intermediate for constructing complex molecules. It is particularly valuable in the preparation of polyethylene glycol (PEG)-based compounds, which are widely used in pharmaceuticals, biotechnology, and material science. The tosyloxy group serves as a reactive site for further functionalization, enabling the attachment of various moieties. Additionally, it is employed in the development of drug delivery systems, where PEGylation enhances the solubility, stability, and bioavailability of therapeutic agents. Its application also extends to the synthesis of surfactants and polymers, where its structure contributes to the desired properties of the final product.