Used primarily as an intermediate in organic synthesis, particularly in the preparation of heterocyclic compounds and pharmaceuticals. It serves as a reagent in the development of hydroxamic acids, which are known for their metal-chelating properties and are explored in medicinal chemistry for enzyme inhibition, especially in anticancer and anti-inflammatory agents. Also finds use in research settings for modifying biomolecules and studying reaction mechanisms involving nitrosating or hydroxylamine species. Due to its reactivity, it is handled under controlled conditions in laboratory environments.