Used as a crosslinking agent in biochemistry for conjugating proteins and other biomolecules. It reacts with amino groups under mild conditions to form stable linkages, making it valuable in immunochemistry and enzyme labeling. Commonly employed in the preparation of protein-protein conjugates and in immobilizing enzymes on solid supports. Its high solubility in aqueous solutions allows for efficient coupling without organic solvents. Also utilized in modifying nucleic acids and in crosslinking studies to probe molecular interactions.