N-Carbobenzoxy-L-serine Methyl Ester is primarily used in peptide synthesis as a protected form of serine. It serves as an intermediate in the production of complex peptides, ensuring that the serine residue remains intact during reactions. This compound is particularly valuable in solid-phase peptide synthesis (SPPS), where it helps in the stepwise assembly of amino acids. Additionally, it is utilized in the preparation of serine-containing peptides for research in biochemistry and pharmaceuticals, aiding in the study of protein structure and function. Its protective group can be selectively removed, allowing for further modifications and extensions of the peptide chain.