2-Chloro-5H-pyrido[2',1':2,3]imidazo[4,5-b]indole hydrochloride 3-Chloro-5H-pyrido[2',1':2,3]imidazo[4,5-b]indole hydrochloride AIDS-157510 AIDS157510 NSC643050 NSC643051 (HYDROCHLORIDE SALT) {2-Chloro-5H-pyrido[2',1':2,3]imidazo[4,5-b]indole} hydrochloride