PTH-asparagine is primarily used in biochemical research and peptide synthesis. It serves as a derivative in the study of peptide structures and functions, particularly in the analysis of amino acid sequences. The compound is often employed in Edman degradation, a method for sequencing amino acids in peptides and proteins, where it helps in identifying and characterizing asparagine residues. Additionally, PTH-asparagine is utilized in the development of diagnostic tools and assays for detecting specific proteins or peptides in biological samples. Its role in understanding post-translational modifications and protein folding also makes it valuable in proteomics and molecular biology research.