Used in bioconjugation and click chemistry, this compound is valuable for attaching biomolecules to surfaces or other molecules. Its endo-BCN group reacts efficiently with azides, enabling stable triazole linkages. The PEG3 spacer enhances solubility and reduces steric hindrance, making it ideal for modifying peptides, proteins, or nanoparticles. It is particularly useful in drug delivery systems, diagnostic probes, and targeted therapies, where precise molecular attachment is critical. The amine group allows further functionalization, expanding its utility in creating complex biomolecular constructs.