This chemical is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) as a protected amino acid derivative. The fluorenylmethoxycarbonyl (Fmoc) group serves as a temporary protecting group for the amino functionality, allowing for selective deprotection during the stepwise construction of peptides. The thioether linkage and phenylacetamido moiety provide additional stability and specificity in the synthesis process. It is commonly employed in the production of complex peptides for research, pharmaceuticals, and biotechnology applications, enabling the precise assembly of peptide chains with high purity and yield. Its structure also makes it suitable for synthesizing peptides with specific functional or structural properties.