Chemical Name: Diltiazem N-Oxide O-Desacetyl Impurity ; O-Desacetyl Diltiazem N-Oxide ; (2S,3S)-5-[2-(Dimethylamino)ethyl]-2-(4-methoxyphenyl)-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepin-3-ol N-Oxide ;
Synonym: 2-(4-(methylsulfonyl)phenyl)-1-morpholinoethan-1-one