Used in bioconjugation, this chemical is essential for linking biomolecules like proteins, peptides, and antibodies to other entities, enhancing their solubility and stability. It is widely applied in drug delivery systems to improve the pharmacokinetics and targeting efficiency of therapeutic agents. In diagnostic assays, it aids in the development of sensitive and specific detection probes. Additionally, it plays a role in surface modification of nanoparticles and materials for biomedical research, ensuring better biocompatibility and functionality. Its PEG spacer reduces immunogenicity and prolongs circulation time in biological systems.