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MassBank Record: MSBNK-LCSB-LU123556

6-Methyl-2-thiouracil; LC-ESI-QFT; MS2; CE: 90; R=17500; [M-H]-

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

ACCESSION: MSBNK-LCSB-LU123556
RECORD_TITLE: 6-Methyl-2-thiouracil; LC-ESI-QFT; MS2; CE: 90; R=17500; [M-H]-
DATE: 2020.08.19
AUTHORS: Elapavalore, A.; Kondić, T.; Singh, R.; Schymanski, E.
LICENSE: CC BY
COPYRIGHT: Copyright © 2019 by Environmental Cheminformatics, LCSB, University of Luxembourg, Luxembourg
PUBLICATION: Elapavalore, A.; Kondić, T.; et al., Adding Open Spectral Data to MassBank and PubChem Using Open Source Tools to Support Non-Targeted Exposomics of Mixtures (submitted).
PROJECT: ENTACT U.S. Environmental Protection Agency’s Non-Targeted Analysis Collaborative Trial
COMMENT: CONFIDENCE standard compound
COMMENT: INTERNAL_ID 1235
COMMENT: DATASET 20200303_ENTACT_RP_MIX504
COMMENT: DATA_PROCESSING MERGING RMBmix ver. 0.2.7
COMMENT: DATA_PROCESSING PRESCREENING Shinyscreen ver. 0.8.0
COMMENT: ORIGINAL_ACQUISITION_NO 1126
COMMENT: ORIGINAL_PRECURSOR_SCAN_NO 1124
COMMENT: RAW_DATA available as MSV000091754 at [DOI:10.25345/C5S46HG75]

CH$NAME: 6-Methyl-2-thiouracil
CH$NAME: 6-methyl-2-sulfanyl-1H-pyrimidin-4-one
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C5H6N2OS
CH$EXACT_MASS: 142.0201
CH$SMILES: CC1=CC(=O)NC(=S)N1
CH$IUPAC: InChI=1S/C5H6N2OS/c1-3-2-4(8)7-5(9)6-3/h2H,1H3,(H2,6,7,8,9)
CH$LINK: CAS 56-04-2
CH$LINK: CHEBI 82346
CH$LINK: CHEMSPIDER 580871
CH$LINK: INCHIKEY HWGBHCRJGXAGEU-UHFFFAOYSA-N
CH$LINK: KEGG C19265
CH$LINK: PUBCHEM CID:667493

AC$INSTRUMENT: Q Exactive Orbitrap (Thermo Scientific)
AC$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$MASS_SPECTROMETRY: COLLISION_ENERGY 90
AC$MASS_SPECTROMETRY: RESOLUTION 17500
AC$CHROMATOGRAPHY: COLUMN_NAME Acquity BEH C18 1.7um, 2.1x150mm (Waters)
AC$CHROMATOGRAPHY: FLOW_GRADIENT 90/10 at 0-2 min, 0/100 at 15-20 min, 90/10 at 20.1-30 min
AC$CHROMATOGRAPHY: FLOW_RATE 0.20 mL/min
AC$CHROMATOGRAPHY: RETENTION_TIME 4.312 min
AC$CHROMATOGRAPHY: SOLVENT A 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B methanol

MS$FOCUSED_ION: BASE_PEAK 75.0088
MS$FOCUSED_ION: PRECURSOR_M/Z 141.0128
MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-
MS$FOCUSED_ION: PRECURSOR_INTENSITY 1762451.538818
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 2.99.2

PK$SPLASH: splash10-0a4i-9000000000-49e820e9e92e6543492b
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  57.9757 CNS- 1 57.9757 -0.67
  107.025 C5H3N2O- 1 107.0251 -1.11
PK$NUM_PEAK: 2
PK$PEAK: m/z int. rel.int.
  57.9757 652019.7 999
  107.025 2100.3 3
//

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