Used primarily in bioconjugation and click chemistry, this compound enables the modification of biomolecules by reacting with carbonyl groups, such as those in ketones and aldehydes. It is particularly valuable in the development of antibody-drug conjugates (ADCs) and protein labeling, where it facilitates the attachment of functional groups or therapeutic agents to target molecules. The azide group allows for efficient copper-catalyzed azide-alkyne cycloaddition (CuAAC) reactions, making it a versatile tool in chemical biology and drug discovery. Additionally, it is employed in the synthesis of polyethylene glycol (PEG)ylated compounds, enhancing their solubility and stability for biomedical applications.