This chemical is primarily used in surface modification and bioconjugation applications. Its triethoxysilane group allows it to form stable bonds with silica-based materials, making it ideal for functionalizing glass, silicon, or other oxide surfaces. The azido group enables click chemistry reactions, particularly with alkynes, facilitating the attachment of biomolecules, polymers, or other functional groups. The PEG3 spacer enhances solubility and reduces steric hindrance, ensuring efficient reactions. It is widely employed in biosensor development, drug delivery systems, and material science for creating advanced functional surfaces.