Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and agrochemicals. It serves as a brominating and chlorinating agent in various chemical reactions. Commonly employed in the synthesis of heterocyclic compounds due to its dual halogen functionality. Also utilized in the development of biocides and antimicrobial agents because of its reactivity with biological nucleophiles. Its selective reactivity makes it valuable in modifying peptides and proteins in biochemical research.