This chemical is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a building block for introducing azide-functionalized phenylalanine residues into peptide chains. The azide group allows for subsequent click chemistry reactions, such as the copper-catalyzed azide-alkyne cycloaddition (CuAAC), enabling the attachment of various functional groups or labels to the peptide. This makes it valuable in bioconjugation, drug discovery, and the development of peptide-based probes for biological studies. Additionally, its Fmoc protecting group ensures compatibility with standard SPPS protocols, facilitating efficient and controlled peptide assembly.