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MassBank Record: SM833453

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

Mass Spectrum
Chemical Structure
Generated by the Chemistry Development Kit (http://github.com/cdk)

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, E. L.; Ruttkies, C.; Krauss, M.; Brouard, C.; Kind, T.; Dührkop, K.; Allen, F.; Vaniya, A.; Verdegem, D.; Böcker, S.; et al. Critical Assessment of Small Molecule Identification 2016: Automated Methods. Journal of Cheminformatics 2017, 9 (1). DOI:10.1186/s13321-017-0207-1
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$LINK: CHEMSPIDER 4433
CH$LINK: COMPTOX DTXSID6021080

AC$INSTRUMENT: Q Exactive Plus Orbitrap Thermo Scientific
AC$INSTRUMENT_TYPE: LC-ESI-QFT
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$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
//

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