H-Thr-OBzl.oxalate is primarily utilized in peptide synthesis as a protected amino acid derivative. The benzyl (Bzl) group acts as a protective moiety for the hydroxyl group of threonine, ensuring it remains intact during the coupling reactions of peptide chain assembly. This compound is particularly valuable in solid-phase peptide synthesis (SPPS) where selective deprotection and coupling steps are critical. Additionally, H-Thr-OBzl.oxalate is employed in the preparation of complex peptides and proteins for research in biochemistry and pharmacology, aiding in the study of peptide structure and function. Its role in protecting specific functional groups makes it essential for synthesizing peptides with high precision and purity.