Chemical Name: 9-Methoxy-1,3-dimethyl-12-thioxopyrido[1′,2′:3,4]imidazo[1,2-a]benzimidazol-2(12H)-one (as per EP)
Synonym: Omeprazole BP Impurity G ; Isomer of Omeprazole EP Impurity F ; Omeprazole USP Related Compound G
Smiles: O=C1C(C)=C2N(C3=NC4=CC=C(OC)C=C4N3C2=S)C=C1C
Inchi: InChI=1S/C16H13N3O2S/c1-8-7-18-13(9(2)14(8)20)15(22)19-12-5-4-10(21-3)6-11(12)17-16(18)19/h4-7H,1-3H3
Elemental impurities analysis in name-brand and generic omeprazole drug samples
Fernanda C. Pinheiro, Ariane I.Barros, Joaquim A.Nóbrega
Heliyon Volume 6, Issue 2, February 2020, e03359
Development of a validated RP-HPLC method for separation and determination of process-related impurities of omeprazole in bulk drugs
cristina iuga, marius bojiţă, sorin e. leucuţa
farmacia, 2009, vol. 57, 5
Low Level Quantification of Potential Genotoxic Impurity in Omeprazole Drug Substance by UPLC
Vinay Kumar Patcha , Susheela Bhai Gajbhiye , Vundavilli Jagadeesh Kumar , Ray UK ,Pavan Kumar KSR , Sreenivas N
Der Pharma Chemica, 2017, 9(15):72-76