Used in bioconjugation and chemical biology, this compound is valuable for linking biomolecules due to its reactive BCN group and PEG spacer, which enhances solubility and reduces steric hindrance. It is commonly employed in click chemistry reactions, particularly strain-promoted azide-alkyne cycloaddition (SPAAC), to label or modify proteins, peptides, and other biomolecules. Its application extends to drug delivery systems, where it facilitates the attachment of therapeutic agents to targeting molecules. Additionally, it is utilized in the development of bioimaging probes and diagnostic tools, enabling precise visualization of cellular processes. The amine group further allows for additional functionalization, making it versatile in synthetic and biomedical research.