Z-D-Orn(Boc)-OH is a doubly protected derivative of D-ornithine, featuring Z (benzyloxycarbonyl) protection on the α-amino group and Boc (tert-butyloxycarbonyl) protection on the δ-amino group of the side chain. Used primarily in peptide synthesis, it serves as a building block for incorporating D-ornithine residues with selective protection, ensuring controlled reactions at the carboxylic acid and other sites. This compound is particularly valuable in the preparation of complex peptides and proteins, where precise control over amino acid sequence and stereochemistry is crucial. It is also employed in pharmaceutical development for creating peptide-based drugs with specific biological activities. Additionally, it finds use in research for studying peptide interactions, folding, and properties.