This chemical is primarily used in peptide synthesis as a building block for solid-phase peptide synthesis (SPPS). It serves as a protected amino acid derivative, where the Fmoc (fluorenylmethyloxycarbonyl) group acts as a temporary protecting group for the amine functionality. The phenoxyacetic acid moiety enhances its attachment to resin supports, facilitating the stepwise assembly of peptides. Its application is crucial in the development of pharmaceuticals, bioactive peptides, and research involving peptide-based compounds. The dimethoxyphenyl group provides additional stability during the synthesis process, making it a valuable reagent in organic and medicinal chemistry.