Ivabradine Impurity 16 HCl Ivabradine Impurity 21 HCl Ivabradine Impurity 1 Hydrochloride Nalfurafine ent-Ivabradine Hydrochloride N-DeMethyl Ivabradine Hydrochloride 7,8-Dimethoxy-3-(3-iodopropyl)-1,3-dihydro-2H-3-benzazepin-2-one 3-[3-[[[(7S)-3,4-DiMethoxybicyclo[4.2.0]octa-1,3,5-trien-7-yl]Methyl]MethylaMino]propyl]-1,3-dihydro-7,8-diMethoxy-H-3-benzazepin-2-one Ivabradine IMpurity Ivabradine Impurity 15 3-(3-hydroxypropyl)-7,8-dimethoxy-1,3-dihydro-2H-benzo[d]azepin-2-one Ivabradine Impurity 5 Ivabradine-d3 Hydrochloride 3-(3-Chloropropyl)-7,8-dimethoxy-2,3,4,5-tetrahydro-1H-3-benzazepin-2-one Dehydro Ivabradine Oxalate 8-DeMethyl Ivabradine N-(2,2-dimethoxy-ethyl)-3,4-dimethoxyphenylacetamide Ivabradine Impurity 20