110374-16-8Omeprazole impurity B [EP]Omeprazole Impurity BUNII-0S4HQG5KFN0S4HQG5KFNH-180/29Omeprazole magnesium impurity B [EP]1H-Benzimidazole, 2-(((3,5-dimethyl-2-pyridinyl)methyl)sulfinyl)-6-methoxy-2-((RS)-((3,5-Dimethylpyridin-2-yl)methyl)sulfinyl)-5-methoxy-1H-benzimidazoleOMEPRAZOLE IMPURITY B [EP IMPURITY]