(-)-Omeprazole (S)-(-)-Omeprazole (S)-Omeprazole 119141-88-7 193469-77-1 1H-Benzimidazole, 5-methoxy-2-((S)-((4-methoxy-3,5-dimethyl-2- pyridinyl)methyl)sulfinyl)- 326602-80-6 Esomeprazole Esomperazole Nexiam