N-Carbobenzoxy-D-serine is primarily used in peptide synthesis as a protecting group for the amino acid serine. It helps in preventing unwanted reactions at the serine site during the formation of peptide bonds, ensuring the selective construction of complex peptide structures. This compound is particularly valuable in the production of pharmaceuticals and bioactive peptides, where precise control over molecular assembly is crucial. Additionally, it finds application in research laboratories for studying peptide interactions and developing new therapeutic agents. Its role in organic synthesis also extends to the preparation of specialized amino acid derivatives for various biochemical studies.