MassBank Record: SM833453



 Omeprazole; LC-ESI-QFT; MS2; CE: 35 NCE; R=35000; [M-H]- 
Mass Spectrum
Chemical Structure

ACCESSION: SM833453
RECORD_TITLE: Omeprazole; LC-ESI-QFT; MS2; CE: 35 NCE; R=35000; [M-H]-
DATE: 2016.12.12
AUTHORS: Krauss M, Schymanski EL, Weidauer C, Schupke H, UFZ and Eawag
LICENSE: CC BY
COPYRIGHT: Copyright (C) 2016 UFZ/Eawag
PUBLICATION: Schymanski, EL et al. Critical Assessment of Small Molecule Identification 2016 - Automated Methods. Submitted.
COMMENT: CONFIDENCE standard compound
COMMENT: INTERNAL_ID 8334

CH$NAME: Omeprazole CH$NAME: 6-methoxy-2-[(4-methoxy-3,5-dimethylpyridin-2-yl)methylsulfinyl]-1H-benzimidazole CH$COMPOUND_CLASS: N/A; Environmental Standard CH$FORMULA: C17H19N3O3S CH$EXACT_MASS: 345.11471 CH$SMILES: COC1=CC=C2N=C(NC2=C1)S(=O)CC1=NC=C(C)C(OC)=C1C CH$IUPAC: InChI=1S/C17H19N3O3S/c1-10-8-18-15(11(2)16(10)23-4)9-24(21)17-19-13-6-5-12(22-3)7-14(13)20-17/h5-8H,9H2,1-4H3,(H,19,20) CH$LINK: CAS 73590-58-6 CH$LINK: CHEBI 7772 CH$LINK: KEGG D00455 CH$LINK: PUBCHEM CID:4594 CH$LINK: INCHIKEY SUBDBMMJDZJVOS-UHFFFAOYSA-N CH$LINK: CHEMSPIDER 4433
AC$INSTRUMENT: Q Exactive Plus Orbitrap Thermo Scientific AC$INSTRUMENT_TYPE: LC-ESI-QFT AC$MASS_SPECTROMETRY: MS_TYPE MS2 AC$MASS_SPECTROMETRY: IONIZATION ESI AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE HCD AC$MASS_SPECTROMETRY: COLLISION_ENERGY 35 (nominal) AC$MASS_SPECTROMETRY: RESOLUTION 35000 AC$CHROMATOGRAPHY: COLUMN_NAME Kinetex C18 EVO 2.6 um, 2.1x50 mm, precolumn 2.1x5 mm, Phenomenex AC$CHROMATOGRAPHY: FLOW_GRADIENT 95/5 at 0 min, 95/5 at 1 min, 0/100 at 13 min, 0/100 at 24 min AC$CHROMATOGRAPHY: FLOW_RATE 300 uL/min AC$CHROMATOGRAPHY: RETENTION_TIME 8.138 min AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid
MS$FOCUSED_ION: BASE_PEAK 254.9968 MS$FOCUSED_ION: PRECURSOR_M/Z 344.1074 MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]- MS$DATA_PROCESSING: RECALIBRATE loess on assigned fragments and MS1 MS$DATA_PROCESSING: REANALYZE Peaks with additional N2/O included MS$DATA_PROCESSING: WHOLE RMassBank 2.3.1
PK$SPLASH: splash10-002f-0900000000-412912cbbcdbd1b34699 PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm) 147.02 C7H3N2O2- 1 147.02 -0.19 178.992 C7H3N2O2S- 1 178.9921 -0.21 194.0155 C8H6N2O2S- 2 194.0155 -0.3 344.1084 C17H18N3O3S- 1 344.1074 2.85 PK$NUM_PEAK: 4 PK$PEAK: m/z int. rel.int. 147.02 66309 166 178.992 238247.1 599 194.0155 396864.9 999 344.1084 7162.5 18 //