N'-CBZ-D-Ornithine is a protected derivative of the non-proteinogenic amino acid D-ornithine. Its chemical structure features a D-configuration at the alpha-carbon and a carboxybenzyl (Cbz) protecting group on the side-chain amino group. This compound is a white to off-white crystalline powder. This derivative is primarily used as a key chiral building block in the solid-phase and solution-phase synthesis of peptides and peptidomimetics. The Cbz group protects the ornithine side chain during peptide assembly and can be selectively removed under mild hydrogenation conditions. D-Ornithine and its derivatives are of significant interest in medicinal chemistry for developing bioactive peptides, enzyme inhibitors, and potential therapeutic agents. As a protected amino acid, it serves as a crucial intermediate for researchers in pharmaceutical development and life sciences. Proper handling is required as it may cause skin and eye irritation.