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MassBank Record: MSBNK-BAFG-CSL2311092627

3,7-Dimethylxanthine; LC-ESI-QTOF; MS2; 90 V

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

ACCESSION: MSBNK-BAFG-CSL2311092627
RECORD_TITLE: 3,7-Dimethylxanthine; LC-ESI-QTOF; MS2; 90 V
DATE: 2023.11.09
AUTHORS: Kevin S. Jewell; Björn Ehlig; Arne Wick
LICENSE: dl-de/by-2-0
COPYRIGHT: Copyright 2023 Federal Institute of Hydrology, Koblenz, Germany
COMMENT: CONFIDENCE Reference Standard (Level 1)
COMMENT: Chromatography method: dx.doi.org/10.1016/j.chroma.2015.11.014
COMMENT: Acquisition method: 10.1002/rcm.8541

CH$NAME: 3,7-Dimethylxanthine
CH$COMPOUND_CLASS: Pharmaceutical; Natural_product
CH$FORMULA: C7H8N4O2
CH$EXACT_MASS: 180.0647
CH$SMILES: Cn1cnc2N(C)C(=O)NC(=O)c12
CH$IUPAC: InChI=1S/C7H8N4O2/c1-10-3-8-5-4(10)6(12)9-7(13)11(5)2/h3H,1-2H3,(H,9,12,13)
CH$LINK: CAS 83-67-0
CH$LINK: INCHIKEY YAPQBXQYLJRXSA-UHFFFAOYSA-N

AC$INSTRUMENT: TripleTOF 5600 SCIEX
AC$INSTRUMENT_TYPE: LC-ESI-QTOF
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 90
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE CID
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$CHROMATOGRAPHY: COLUMN_NAME Zorbax Eclipse Plus C18 2.1 mm x 150 mm, 3.5 um, Agilent
AC$CHROMATOGRAPHY: COLUMN_TEMPERATURE 40 °C
AC$CHROMATOGRAPHY: FLOW_GRADIENT 0 min min 98% A, 1 min 98% A, 2 min 80% A, 16.5 min 2% A, 22 min 2% A, 22.1 min 98% A, 27 min 98% A
AC$CHROMATOGRAPHY: FLOW_RATE 0.3 mL/min
AC$CHROMATOGRAPHY: RETENTION_TIME 5.242 min
AC$CHROMATOGRAPHY: SOLVENT A: Water 0.1% Formic acid, B: Acetonitrile 0.1% Formic acid

MS$FOCUSED_ION: PRECURSOR_M/Z 179.0574
MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-
MS$DATA_PROCESSING: COMMENT Export with Spectra 1.9.12 MsBackendMassbank 1.7.4
MS$DATA_PROCESSING: WHOLE RMassBank 2.3.1

PK$SPLASH: splash10-0002-9000000000-344102c82ba265316a78
PK$NUM_PEAK: 7
PK$PEAK: m/z int. rel.int.
  42.0028 0.4 148
  45 2.7 999
  45.0124 0.2 74
  45.0216 0.2 74
  45.036 0.2 74
  65.9993 0.6 222
  66.0129 0.1 37
//

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