This compound is widely used in bioorthogonal chemistry, particularly for click chemistry reactions. Its DBCO (dibenzocyclooctyne) group enables rapid and selective conjugation with azide-containing molecules without the need for catalysts. This makes it highly valuable in bioconjugation applications, such as labeling biomolecules, modifying proteins, and functionalizing nanoparticles. The PEG (polyethylene glycol) spacer enhances solubility and reduces steric hindrance, improving reaction efficiency. The terminal acid group allows for further conjugation with amines or other reactive groups, making it versatile for creating complex molecular structures. It is commonly employed in drug delivery systems, diagnostic imaging, and the development of targeted therapeutics.