5-Bromo-4-chloro-1H-pyrrolo[2,3-b]pyridine (CAS NO.876343-82-7) is also named as 1H-pyrrolo[2,3-b]pyridine, 5-bromo-4-chloro- ; 5-Brom-4-chlor-1H-pyrrolo[2,3-b]pyridin .