This compound is primarily used in peptide synthesis as a protected amino acid derivative. The BOC (tert-butoxycarbonyl) group serves as a protective group for the amine functionality, while the ALL (allyl) group protects the hydroxyl group of the tyrosine side chain. This dual protection allows for selective deprotection during peptide synthesis, enabling the controlled assembly of peptide chains. It is particularly useful in solid-phase peptide synthesis (SPPS) where sequential deprotection and coupling steps are required. The compound’s stability under various reaction conditions makes it a valuable reagent in the production of complex peptides and proteins for research, pharmaceuticals, and biotechnology applications.