Pharmaceutical IntermediateChina 7, 8-Dimethoxy-1, 3-Dihydro-2 H- 3-Benzazepin-2-One / Ivabradine Hydrochloride Intermediates CAS 73942-87-7, Find details about China Ivabradine Hydrochloride, 73942-87-7 from 7, 8-Dimethoxy-1, 3-Dihydro-2 H- 3-Benzazepin-2-One / Ivabradine Hydrochloride Intermediates CAS 73942-87-7