Fmoc-(2R)-2-Amino-octanoic acid is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). The Fmoc (9-fluorenylmethoxycarbonyl) group serves as a protecting group for the amino acid, ensuring selective reactions during peptide chain assembly. Its chiral nature makes it valuable for constructing peptides with specific stereochemistry, which is crucial in developing bioactive peptides and pharmaceuticals. Additionally, it is employed in the synthesis of peptidomimetics and other organic compounds where precise control over amino acid incorporation is required. Its application extends to research in biochemistry and drug development, where it aids in studying peptide structure-function relationships and designing therapeutic agents.