This chemical is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protected amino acid derivative, enabling the sequential assembly of peptides. The Fmoc group protects the amino terminus, while the OtBu and psiMe,Mepro groups protect the side chains of glutamic acid and serine, respectively. This protection ensures selective reactivity during peptide chain elongation. It is especially valuable in synthesizing complex peptides with specific sequences, such as those used in pharmaceutical research, drug development, and biochemical studies. The compound’s stability and compatibility with SPPS protocols make it a reliable choice for producing high-purity peptides for therapeutic and investigative purposes.