This chemical is widely used in peptide synthesis as a protecting group for amino acids. Its structure, featuring a Boc (tert-butoxycarbonyl) group and a polyether chain (PEG-like linker), makes it particularly useful for introducing solubility and stability to peptides during synthesis. The Boc group can be easily removed under acidic conditions, allowing for controlled deprotection in multi-step reactions. Additionally, the polyether chain enhances the water solubility of peptides and reduces aggregation, facilitating handling, purification, and applications in biological systems. It is also employed in the development of peptide-based drugs, where its properties help improve the pharmacokinetics and bioavailability of the final product. Furthermore, its application extends to the synthesis of peptide conjugates and biomaterials, where precise control over peptide structure and function is required.