Used as a key reagent in organic synthesis, particularly in radical reactions where it serves as a source of pyridyl radicals. It enables the introduction of pyridyl groups into organic molecules under mild conditions, which is valuable in the development of pharmaceuticals and agrochemicals. Its stability and solubility in polar solvents make it suitable for use in aqueous and mixed solvent systems. Commonly applied in cross-coupling reactions and photoredox catalysis, it supports the construction of complex heterocyclic structures found in bioactive compounds.