Omeprazole Impurity IV Catalogue A413254 CAS 2362529-32-4 M.W 331.39 M.F C16H17N3O3S Specifications FAQs 4(1H)-Pyridinone, 2-[[(6-methoxy-1H-benzimidazol-2-yl)sulfinyl]methyl]-3,5-dimethyl-Desmethoxy Keto Esomeprazole
