Esomeprazole EP Impurity F; Omeprazole R-Isomer (Potassium Salt) ; Omeprazole Potassium R-Isomer

Esomeprazole EP Impurity F; Omeprazole R-Isomer (Potassium Salt) ; Omeprazole Potassium R-Isomer

6-Methoxy-2-[(R)-[(4-methoxy-3,5-dimethyl-2-pyridinyl)methyl]sulfinyl]-1H-benzimidazole Pottasium Salt

Impurity reference standard used for related substances testing of Esomeprazole ;Omeprazole S-Isomer drug substance and drug product per pharmacopoeial limits.