(R)-2-(Fmoc-amino)heptanoic acid is primarily used in peptide synthesis as a building block. It serves as a protected amino acid derivative, where the Fmoc group ensures stability during the coupling process. This chemical is particularly valuable in solid-phase peptide synthesis (SPPS), enabling the creation of complex peptides with high precision. Its application extends to the development of pharmaceuticals, where it aids in the production of peptide-based drugs. Additionally, it is utilized in research to study peptide structures and functions, contributing to advancements in biochemistry and medicinal chemistry.