Cilobradine (DK-AH 269 DK-AH 269 DKAH-269 Cilobradine (hydrochloride) Cilobradine hydrochloride, (S)-(+)-7,8-Dimethoxy-3-[[1-(2-(3,4-dimethoxyphenyl)ethyl)-3-piperidinyl]methyl]-1,3,4,5-tetrahydro-2H-3-benzazepin-2-one hydrochloride Cilobradine DK-AH (S)-(+)-7,8-Dimethoxy-3-[[1-(2-(3,4-dimethoxyphenyl)ethyl)-3-piperidinyl]methyl]-1,3,4,5-tetrahydro-2H-3-benzazepin-2-one hydrochloride DK-AH 269 >=98% (HPLC), solid