ACCESSION: MSBNK-BAFG-CSL23111011385
RECORD_TITLE: Theophylline; LC-ESI-QTOF; MS2; 80 V
DATE: 2023.11.10
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$NAME: Theophylline
CH$COMPOUND_CLASS: Pharmaceutical
CH$FORMULA: C₇H₈N₄O₂
CH$EXACT_MASS: 180.0647
CH$SMILES: CN1C2=C(C(=O)N(C1=O)C)NC=N2
CH$IUPAC: InChI=1S/C7H8N4O2/c1-10-5-4(8-3-9-5)6(12)11(2)7(10)13/h3H,1-2H3,(H,8,9)
CH$LINK: CAS 58-55-9
CH$LINK: INCHIKEY ZFXYFBGIUFBOJW-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$MASS_SPECTROMETRY: COLLISION_ENERGY 80
AC$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 4.936 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$SPLASH: splash10-014l-9000000000-39b8c3c29e1cdd9dda1c
PK$NUM_PEAK: 13
PK$PEAK: m/z int. rel.int.
  38.0035 1.9 333
  40.0069 0.8 140
  40.0185 0.3 52
  41.9984 3 525
  44.9978 1.4 245
  55.0296 0.8 140
  64.0062 0.7 122
  65.014 1.7 297
  65.9981 5.7 999
  67.0296 0.8 140
  79.0172 0.5 87
  92.024 0.6 105
  94.0425 0.3 52
//