34842-62-1 36812-55-2 39416-48-3 50514-09-5 543-52-2 66323-10-2 70873-43-7 91113-93-8 EINECS 254-446-8 Hydrogen tribromide, compd. with pyridine (1:1) Pyridinium bromide perbromide Pyridinium tribromide