Cyanogen bromide is a chemical compound with the formula CBrN. It appears as a colorless to yellowish liquid and has a pungent odor. This compound is primarily used in organic synthesis and as a reagent in various chemical reactions, particularly in the preparation of peptides and proteins. In addition to its applications in laboratories, cyanogen bromide is also utilized in the production of certain pharmaceuticals and agrochemicals. Due to its toxic nature, it must be handled with care, and proper safety measures should be taken to avoid exposure to its harmful effects.