Used in bioconjugation to link biomolecules, such as proteins or peptides, to other entities like drugs or fluorescent markers. It acts as a crosslinker in drug delivery systems to enhance targeting and stability. Applied in the development of antibody-drug conjugates (ADCs) for cancer therapy. Also utilized in surface modification of nanoparticles to improve biocompatibility and functionality. Commonly employed in research for studying molecular interactions and cellular processes.