Chemical Name: Diltiazem 2-Epimer O-Desacetyl N-Desdimethylaminoethyl Impurity ; O-Desacetyl N-Desdimethylaminoethyl Diltiazem 2-Epimer ; (2R,3S)-2-(4-Methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-ol ;
Synonym: (E)-5-(1,3-bis(4-(methylsulfonyl)phenyl)prop-1-en-2-yl)-2-methylpyridine