Z-D-Dap(Boc)-ol is a protected derivative of D-2,3-diaminopropan-1-ol, used primarily in peptide synthesis as a building block. The Z (benzyloxycarbonyl) group protects the α-amino functionality, while the Boc (tert-butyloxycarbonyl) group protects the β-amino group, preventing unwanted side reactions during synthesis. The -ol designation indicates the carboxylic acid of D-diaminopropionic acid (Dap) has been reduced to a primary alcohol, enabling its incorporation as a C-terminal residue or in peptidomimetics. This compound is valuable in research and pharmaceutical development for creating precise peptide sequences to study biological activity or design therapeutic agents, such as peptide-based drugs and enzyme inhibitors.