Suberic acid bis(N-hydroxysuccinimide ester) is widely used as a crosslinking agent in biochemical and bioconjugation applications. It is particularly effective in linking proteins, peptides, or other biomolecules through amine groups, facilitating the formation of stable amide bonds. This compound is commonly employed in the preparation of immunoconjugates, such as antibody-drug conjugates, where it helps attach therapeutic agents to antibodies for targeted drug delivery. Additionally, it is utilized in the development of biosensors and immunoassays, enabling the immobilization of biomolecules onto solid surfaces. Its water-soluble nature and high reactivity make it a valuable tool in protein labeling, modification, and crosslinking studies in research and diagnostics.