Used in peptide synthesis as a building block, particularly for introducing a flexible linker or spacer between amino acids. The Fmoc group provides protection during the synthesis process, while the 7-Ahp (7-aminoheptanoic acid) moiety adds a hydrocarbon chain that enhances solubility and flexibility in the peptide structure. This compound is valuable in creating peptides with specific conformational properties, often applied in drug development, bioconjugation, and material science. Its versatility makes it suitable for designing peptide-based therapeutics, biomaterials, and research tools.