N-Chloroacetyl-DL-norleucine is primarily utilized in the field of peptide synthesis. It serves as a key intermediate in the preparation of various peptides and peptide derivatives. The compound is particularly valuable in the modification of amino acids, enabling the introduction of specific functional groups that enhance the biological activity or stability of the resulting peptides. Additionally, it is employed in the development of peptide-based pharmaceuticals, where it aids in the creation of novel therapeutic agents targeting a range of diseases. Its role in facilitating precise chemical modifications makes it a crucial component in the synthesis of complex peptide structures for research and drug development.