This chemical is primarily utilized in the field of bioconjugation and pharmaceutical research. It serves as a linker or spacer molecule in the development of drug delivery systems, particularly for conjugating therapeutic agents to targeting molecules like antibodies or peptides. The sulfone group in its structure enables stable and specific covalent bonding, while the PEG (polyethylene glycol) chains enhance solubility and reduce immunogenicity, making it suitable for improving the pharmacokinetics of drugs. It is also employed in the synthesis of antibody-drug conjugates (ADCs) and other targeted therapies, where precise and controlled release of the active compound is crucial. Additionally, its hydrophilic PEG segments contribute to prolonged circulation time in the body, enhancing the efficacy of therapeutic formulations.