Used primarily as a reactive intermediate in organic synthesis, especially in the preparation of brominated compounds. It serves as a brominating agent in the development of flame retardants due to its high bromine content. Also employed in the synthesis of pharmaceuticals and agrochemicals where selective bromination is required. Its high reactivity makes it suitable for acylation reactions under controlled conditions, particularly in the formation of amides and esters that incorporate bromine for further functionalization. Handle with care due to lachrymatory and corrosive properties.