Used primarily in organic synthesis as a reagent for the introduction of the pyridine N-oxide moiety into various compounds. It is particularly valuable in the preparation of pharmaceuticals and agrochemicals, where the N-oxide group can enhance biological activity or modify chemical properties. Additionally, it serves as a key intermediate in the synthesis of complex molecules, including ligands for catalysis and materials for electronic applications. Its reactivity makes it useful in cross-coupling reactions and as a building block for heterocyclic chemistry.