Omeprazole Sulfide
Omeprazole IMP 5-Methoxy-2-{[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]thio}-1H-benzimidazole, 6-Methoxy-2-{[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]thio}-1H-benzimidazole