This compound is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a protected amino acid derivative, where the Fmoc (fluorenylmethyloxycarbonyl) group acts as a temporary protecting group for the amine functionality during the synthesis process. The azide (N3) group on the side chain of ornithine provides a reactive handle for further chemical modifications, such as click chemistry reactions, enabling the incorporation of various functional groups or labels into the peptide structure. This makes it valuable in the development of peptide-based drugs, bioconjugates, and probes for biochemical and biomedical research. Its use is especially relevant in creating complex peptides with specific biological activities or targeting properties.