Used as a reagent for the direct and efficient conversion of primary amines into the corresponding azides under mild conditions. This azidation is particularly valuable for preparing azido amino acids and azidopeptides, which serve as key intermediates in click chemistry for bioconjugation, molecular labeling, and synthesis of biomolecules. Commonly applied in pharmaceutical and molecular biology research to attach labels or track molecular functions within cells. Also utilized to modify organic compound structures, enhancing properties such as water solubility or specific target binding. Stable, non-explosive, and easy to handle, making it suitable for laboratory and large-scale reactions.