Used primarily in organic synthesis as a nitrosating agent, it facilitates the introduction of nitroso groups into various compounds. It is particularly valuable in the preparation of diazo compounds, which are intermediates in the production of dyes, pigments, and pharmaceuticals. Additionally, it serves as a reagent in the study of reaction mechanisms involving nitrosation processes. Its application is also observed in the development of specialized polymers and materials where controlled nitrosation is required.