Used primarily in peptide synthesis, it serves as a protected dipeptide derivative. The Boc group protects the amine functionality of serine, while the Fmoc group protects the amine functionality of glycine. This dual protection allows for selective deprotection and sequential peptide chain assembly. It is particularly useful in solid-phase peptide synthesis (SPPS) for constructing complex peptides with high precision. Its application is critical in the development of pharmaceuticals, bioactive peptides, and research involving protein engineering.