This chemical is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a protected amino acid derivative, where the fluorenylmethoxycarbonyl (Fmoc) group acts as a temporary protecting group for the amino functionality. The presence of the 5-fluoroindole moiety makes it valuable for synthesizing peptides with specific biological activities, especially in drug discovery and development. It is often employed in the preparation of peptide-based pharmaceuticals, targeting diseases where indole-containing peptides play a role, such as in cancer research or neurological studies. The fluorine atom enhances the peptide's stability and bioavailability, making it a useful building block in medicinal chemistry.