Used extensively in bioconjugation and click chemistry applications, this compound serves as a linker for attaching biomolecules like proteins, peptides, or antibodies to other entities such as nanoparticles, dyes, or drugs. Its DBCO group enables strain-promoted azide-alkyne cycloaddition (SPAAC), a reaction known for its efficiency and selectivity in biological systems. The PEG6 spacer enhances solubility and reduces steric hindrance, ensuring better accessibility during reactions. Commonly applied in drug delivery systems, diagnostics, and targeted therapies, it facilitates the development of advanced bioconjugates with improved stability and functionality.