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 fluorenylmethoxycarbonyl (Fmoc) group acts as a temporary protecting group for the amino functionality. This allows for the sequential addition of amino acids to build peptides with high precision. The hydrochloride salt form ensures stability and solubility during the synthesis process. It is widely employed in the production of peptides for pharmaceutical research, drug development, and biochemical studies. Its application is critical in creating peptides with specific sequences for therapeutic and diagnostic purposes.