Azido-PEG10-azide is widely utilized in bioconjugation and click chemistry applications due to its dual azide functional groups. It serves as a versatile linker in the synthesis of polymers, biomaterials, and drug delivery systems. Its polyethylene glycol (PEG) spacer enhances solubility and reduces immunogenicity, making it suitable for modifying proteins, peptides, and nanoparticles. Additionally, it is employed in the development of hydrogels, biosensors, and targeted therapeutics, where its reactive azide groups enable efficient crosslinking and functionalization. Its compatibility with biological systems and ease of reaction with alkyne groups make it a valuable tool in advanced biomedical research and material science.