This chemical is primarily used in peptide synthesis and bioconjugation processes. It serves as a building block for creating complex peptide structures, particularly in solid-phase peptide synthesis (SPPS). The azide group allows for click chemistry reactions, enabling the attachment of various functional groups or molecules. The Fmoc (fluorenylmethyloxycarbonyl) protecting group ensures selective deprotection during synthesis, while the PEG3 spacer enhances solubility and flexibility of the peptide chain. It is commonly employed in the development of drug delivery systems, bioconjugates, and probes for biological studies. Its applications also extend to the preparation of peptide-based materials and the modification of biomolecules for research and therapeutic purposes.