This chemical is primarily utilized in bioconjugation and protein labeling due to its reactive succinimide ester group, which facilitates covalent bonding with primary amines in proteins, peptides, and other biomolecules. It is particularly valuable in the development of antibody-drug conjugates (ADCs) for targeted cancer therapies, where it enables the precise attachment of cytotoxic agents to antibodies. Additionally, it is employed in fluorescence labeling for imaging and diagnostic applications, allowing researchers to track and visualize biological processes in real-time. Its unique structure also makes it suitable for crosslinking studies in biochemistry, aiding in the investigation of protein-protein interactions and molecular structures.