Used as a key reagent in organic synthesis, particularly in the preparation of heterocyclic compounds and pharmaceuticals. It serves as a cyanating agent, enabling the introduction of cyano groups into various substrates, which is valuable in the development of agrochemicals and active pharmaceutical ingredients. Its reactivity also makes it useful in the formation of amidines and other nitrogen-containing functional groups, playing a role in the synthesis of dyes and functional materials. Due to its sensitivity, it is typically handled under controlled conditions to ensure efficient and selective transformations.