MS-PEG3-THP is widely used in the field of bioconjugation and drug delivery. Its primary application involves acting as a linker molecule to connect various biomolecules, such as peptides, proteins, or drugs, to other functional groups or surfaces. The THP (tetrahydropyran) group serves as a protective moiety, which can be easily removed under mild acidic conditions, allowing for controlled release or activation of the attached molecule. The PEG (polyethylene glycol) spacer enhances solubility, reduces immunogenicity, and improves the stability of the conjugated compounds. This makes MS-PEG3-THP particularly valuable in the development of targeted therapies, antibody-drug conjugates, and other advanced pharmaceutical formulations. Additionally, it is utilized in chemical biology research for modifying biomolecules to study their interactions or functions in biological systems.