Fmoc-Asn-OH is widely used in peptide synthesis, particularly in solid-phase peptide synthesis (SPPS). It serves as a protected form of asparagine, where the Fmoc (fluorenylmethyloxycarbonyl) group protects the amino group during the synthesis process. This allows for the sequential addition of amino acids to build peptides with high precision. The compound is essential in producing peptides for research, pharmaceuticals, and biotechnology applications, such as developing therapeutic peptides, vaccines, and diagnostic tools. Its stability and compatibility with automated synthesizers make it a valuable reagent in peptide chemistry.