Used primarily as a coupling agent in peptide synthesis, it facilitates the formation of amide bonds between amino acids. It is also employed in the modification of proteins and nucleic acids, enabling the attachment of various functional groups. Additionally, it finds use in the preparation of bioconjugates, which are essential in drug delivery systems and diagnostic applications. Its role in crosslinking polymers and biomolecules is crucial in the development of advanced materials and biomedical research.