This chemical is widely utilized in bioconjugation and click chemistry applications due to its DBCO (dibenzocyclooctyne) group, which enables efficient and selective reactions with azide-containing molecules without the need for catalysts. The PEG4 spacer enhances solubility and flexibility, making it suitable for linking biomolecules in aqueous environments. It is commonly used in the development of antibody-drug conjugates, targeted drug delivery systems, and labeling of proteins, peptides, or nucleic acids for imaging and diagnostic purposes. Its amine group allows further functionalization, enabling the attachment of various targeting moieties or payloads. This compound is particularly valuable in biomedical research and pharmaceutical development for creating precise and stable molecular constructs.