Used primarily in biochemical research, it serves as a reagent for modifying amino acids and peptides. It reacts with amino groups to form stable thiourea derivatives, aiding in the study of protein structure and function. Commonly applied in chromatography and mass spectrometry for labeling and detecting biomolecules. Also utilized in synthesizing heterocyclic compounds, which have applications in pharmaceuticals and agrochemicals. Its role in derivatization processes enhances analytical sensitivity and specificity in various scientific investigations.