O-Desacetyl Diltiazem HCl;
(2S,3S)-5-[2-(Dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-ol HCl ;
CAS # 42399-40-6 (Base) ; C20H24N2O3S ; MW: 372.48 ;
CAS # 23515-45-9 (HCl Salt) ; C20H24N2O3S.HCl ; MW: 408.95 ;