Fmoc-N-Me-Abu-OH is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protected amino acid building block, where the Fmoc group provides temporary protection for the amino group during the elongation of the peptide chain. This compound is especially valuable for introducing N-methylated amino acids into peptides, which can enhance their stability, bioavailability, and resistance to enzymatic degradation. It is commonly employed in the development of therapeutic peptides, peptidomimetics, and bioactive molecules, where N-methylation plays a critical role in modulating peptide conformation and interaction with biological targets. Its application is also significant in research focused on peptide-based drug discovery and the study of structure-activity relationships.