This chemical is primarily used in peptide synthesis as a protecting group for amino acids. Its Fmoc (fluorenylmethyloxycarbonyl) group is particularly valuable in solid-phase peptide synthesis, where it helps in the stepwise construction of peptides by protecting the amino group during the coupling reactions. The ethylene glycol linker enhances solubility in organic solvents, facilitating easier handling and purification processes. Additionally, it is employed in the development of peptide-based drugs and biomaterials, where precise control over amino acid sequences is crucial. Its application extends to the synthesis of complex peptides and proteins for research and therapeutic purposes.