Used extensively in bioconjugation and drug delivery systems, it serves as a linker molecule to connect drugs or bioactive molecules to carriers like antibodies or nanoparticles. Its PEG (polyethylene glycol) spacer enhances solubility and reduces immunogenicity, making it ideal for improving the pharmacokinetic properties of therapeutic agents. Commonly employed in peptide synthesis, it protects amine groups during reactions, ensuring selective modification. It also plays a role in the development of prodrugs, where its cleavable bond allows for controlled release of active compounds in targeted tissues. Additionally, it is utilized in the creation of hydrogels and biomaterials for tissue engineering, providing controlled degradation and biocompatibility.