Fmoc-Pro-OH is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a key building block for introducing proline residues into peptide chains. The Fmoc (fluorenylmethyloxycarbonyl) group acts as a protective group for the amino group, allowing for selective deprotection and coupling during the synthesis process. This compound is essential in the production of peptides for pharmaceutical research, drug development, and biochemical studies. Its stability and compatibility with SPPS protocols make it a valuable reagent for creating peptides with specific sequences and functions. Additionally, it is utilized in the synthesis of peptidomimetics and other biologically active compounds.