This chemical is primarily used in bioconjugation and click chemistry applications. It serves as a linker or spacer in the development of drug delivery systems, enabling the attachment of targeting molecules or therapeutic agents to nanoparticles or biomolecules. The sulfone group enhances stability, while the azide group allows for efficient and selective reactions with alkyne-functionalized compounds via copper-catalyzed azide-alkyne cycloaddition (CuAAC). This makes it valuable in creating complex molecular architectures for biomedical research, such as antibody-drug conjugates, peptide modifications, and polymer-based therapeutics. Its PEG (polyethylene glycol) components improve solubility and reduce immunogenicity, making it suitable for in vivo applications.