3-Cbz-aminopentanoic acid is primarily used in organic synthesis as a building block for peptides and other complex molecules. It serves as a protected amino acid derivative, where the Cbz (carbobenzyloxy) group safeguards the amino functionality during chemical reactions. This compound is particularly valuable in peptide synthesis, enabling the stepwise construction of peptide chains without unwanted side reactions. It is also employed in the development of pharmaceuticals, where controlled release of the amino group is required for drug design and synthesis. Additionally, it finds use in research applications, such as the study of enzyme mechanisms and the development of bioactive compounds. Its versatility makes it a key reagent in medicinal chemistry and biochemistry.