This compound is widely utilized in bioorthogonal chemistry, particularly in click chemistry reactions, due to the presence of the DBCO (dibenzocyclooctyne) group, which reacts efficiently with azides without the need for a catalyst. The PEG4 (polyethylene glycol) spacer enhances solubility in aqueous solutions, making it suitable for biological applications. It is commonly used for labeling, modifying, or conjugating biomolecules such as proteins, peptides, and antibodies in research and drug development. The alcohol group provides a reactive site for further functionalization, allowing for the attachment of various molecules or surfaces. This compound is especially valuable in targeted drug delivery, imaging, and diagnostics, where precise and stable conjugation is critical.