This compound is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS) methods. It serves as a building block for introducing modified phenylalanine residues into peptide chains. The Fmoc group acts as a protective group for the amino function, allowing for controlled and sequential peptide assembly. The presence of chlorine atoms at the 3 and 4 positions on the phenyl ring enhances the compound's utility in creating peptides with specific properties, such as increased stability or altered binding affinity. It is commonly employed in the development of bioactive peptides, pharmaceuticals, and research tools for studying protein interactions and enzyme mechanisms. The compound's unique structure makes it valuable in designing peptides with tailored functionalities for therapeutic and diagnostic applications.