6-Chloro-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid (CAS No.915140-96-4), its synonyms are 1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid, 6-chloro- ; Acide 6-chloro-1H-pyrrolo[2,3-b]pyridine-3-carboxylique .