(S)-2-(Fmoc-amino)heptanoic acid is primarily used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a key building block for constructing peptides with specific sequences. The Fmoc (9-fluorenylmethoxycarbonyl) group acts as a protective group for the amino functionality, ensuring selective reactivity during the synthesis process. This compound is especially valuable in the production of modified peptides or peptidomimetics, where the heptanoic acid moiety can introduce unique structural or functional properties. Its application extends to drug discovery and development, where it aids in creating peptide-based therapeutics, bioactive molecules, and research tools for studying protein interactions and biological pathways. Additionally, it is utilized in the synthesis of peptide conjugates for targeted drug delivery systems and diagnostic probes.