Azido-PEG10-Boc is widely used in bioconjugation and click chemistry applications. Its azide group allows for efficient and selective reactions with alkynes via copper-catalyzed azide-alkyne cycloaddition (CuAAC), making it valuable for labeling biomolecules such as proteins, peptides, and nucleic acids. The PEG spacer enhances solubility and reduces steric hindrance, improving reaction efficiency. The Boc (tert-butoxycarbonyl) protecting group can be removed under mild acidic conditions, enabling further functionalization of the molecule. This compound is particularly useful in drug delivery systems, surface modification, and the development of bioimaging probes.