?5-Bromo-2-iodopyridine ,?its cas register number is 223463-13-6. It also can be called?2-Iodo-5-Bromopyridine?; 5-Brom-2-iodpyridin ; pyridine, 5-bromo-2-iodo- .?5-Bromo-2-iodopyridine (CAS NO.223463-13-6) is?a?light yellow cryst.