1H-Pyrrolo[2,3-b]pyridine,4-chloro-

4-Chloro-1H-pyrrolo[2,3-b]pyridine (CAS 55052-28-3), also known as 4-chloro-7-azaindole, is a nitrogen-heterocyclic building block (C7H5ClN2, molecular weight 152.58) with a melting point of 174-176°C. It is manufactured directly by Chem-Stone (Guangzhou) Co., Ltd. and sold worldwide across North America, Europe, Australasia, Asia, the Middle East, and Africa.