Chemical Name: Diltiazem 2-Epimer O-Desacetyl Impurity ; O-Desacetyl Diltiazem 2-Epimer ; (2R,3S)-5-[2-(Dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-ol ;
Synonym: (5-chloro-3-(4-(methylsulfonyl)phenyl)-[2,3'-bipyridin]-6'-yl)methanol