This chemical is primarily utilized in the field of bioconjugation and drug delivery. It serves as a versatile linker or spacer molecule, enabling the attachment of various functional groups or therapeutic agents to larger biomolecules such as proteins, peptides, or antibodies. Its polyethylene glycol (PEG) segment enhances solubility and stability, while the trifluoroethyl group provides chemical robustness. The tosyl group acts as a reactive site, facilitating efficient conjugation reactions. This makes it particularly useful in the development of targeted therapies, where precise delivery of drugs to specific cells or tissues is required. Additionally, it is employed in the modification of surfaces for biomedical applications, such as creating biocompatible coatings on medical devices.