Used extensively in bioconjugation techniques to modify proteins, peptides, and other biomolecules, enhancing their solubility, stability, and bioavailability. Commonly applied in drug delivery systems to create PEGylated therapeutics, which prolong circulation time in the body and reduce immunogenicity. Also utilized in the development of targeted therapies, where it serves as a linker to attach drugs to antibodies or other targeting moieties. Its role in improving the pharmacokinetic properties of drugs makes it valuable in the formulation of cancer treatments, vaccines, and other biologics. Additionally, it is employed in diagnostic assays and imaging agents to improve signal detection and specificity.