Fmoc-Ser-Obzl is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protected form of serine, where the Fmoc group protects the amino group, and the benzyl ester (Obzl) protects the carboxyl group. This protection ensures selective reactions during peptide chain assembly, preventing unwanted side reactions. It is especially valuable in synthesizing complex peptides and proteins for research in biochemistry, pharmaceuticals, and biotechnology. Additionally, it is employed in the development of peptide-based drugs, vaccines, and diagnostic tools due to its stability and compatibility with automated peptide synthesizers.