This compound is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protected amino acid derivative, where the fluorenylmethoxycarbonyl (Fmoc) group protects the amino group during the synthesis process. The hydrochloride form ensures stability and solubility in various solvents, making it easier to handle in laboratory settings. Its application is crucial in the production of peptides for research, pharmaceuticals, and biotechnology, where precise control over amino acid sequences is required. The Fmoc group can be selectively removed under mild basic conditions, allowing for the stepwise construction of complex peptides.