Used primarily in peptide synthesis, this compound acts as a protecting group for serine. The Fmoc group safeguards the amino group, while the TBDMS group protects the hydroxyl side chain of serine during the synthesis process. This dual protection ensures that unwanted side reactions are minimized, allowing for the precise construction of peptide sequences. It is particularly valuable in solid-phase peptide synthesis, where selective deprotection steps are crucial for building complex peptides. Its stability under basic conditions makes it a reliable choice for sequential peptide elongation, especially in the production of therapeutic peptides and proteins.