ACCESSION: MSBNK-ACES_SU-AS000088
RECORD_TITLE: Caffeine; LC-APCI-QFT; MS2; CE: Ramp 20%-70% (nominal); R=30000; [M+H]+
DATE: 2022.08.15
AUTHORS: ACESx, Jonathan W. Martin Group
LICENSE: CC BY
COPYRIGHT: Stockholm University, ACESx, Jonathan W. Martin Group (C) 2022
COMMENT: CONFIDENCE Standard Compound (Level 1)

CH$NAME: Caffeine
CH$NAME: 1,3,7-trimethylpurine-2,6-dione
CH$COMPOUND_CLASS: Natural Products; Drugs; Alkaloids; Xanthines
CH$FORMULA: C₈H₁₀N₄O₂
CH$EXACT_MASS: 194.0804
CH$SMILES: O=C1C2=C(N=CN2C)N(C(=O)N1C)C
CH$IUPAC: InChI=1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3

AC$INSTRUMENT: QExactive Orbitrap HF-X (Thermo Scientific)
AC$INSTRUMENT_TYPE: LC-APCI-QFT
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE POSITIVE
AC$MASS_SPECTROMETRY: IONIZATION APCI
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE HCD
AC$MASS_SPECTROMETRY: COLLISION_ENERGY Ramp 20%-70% (nominal)
AC$MASS_SPECTROMETRY: RESOLUTION 30000
AC$CHROMATOGRAPHY: COLUMN_NAME Waters; Acquity UPLC BEH C18, 2.1 x 100 mm, 1.7 um, Waters
AC$CHROMATOGRAPHY: FLOW_GRADIENT 98/2 at 4.2 min, 0/100 at 22 min, 0/100 at 25 min, 98/2 at 25.1 min, 98/2 at 30 min
AC$CHROMATOGRAPHY: FLOW_RATE 0.45mL/min
AC$CHROMATOGRAPHY: RETENTION_TIME 8.555100
AC$CHROMATOGRAPHY: UOA_RTI 230.9800
AC$CHROMATOGRAPHY: SOLVENT A 1 mM ammonium fluoride in water
AC$CHROMATOGRAPHY: SOLVENT B MeOH
AC$CHROMATOGRAPHY: COMMENT Coupled to online-solid-phase-extraction with Oasis® HLB (80 Å, 15 um, 2.1 x 20 mm, Waters) with a flow gradient of 98/2 at 0 min, 98/2 at 2.2 min, 0/0 at 4.2 min, 98/5 at 25.1 min, 98/2 at 30 with a flow rate of 0.5 mL/min

MS$FOCUSED_ION: BASE_PEAK 237.10187
MS$FOCUSED_ION: PRECURSOR_M/Z 195.0878
MS$FOCUSED_ION: ION_TYPE [M+H]+
MS$DATA_PROCESSING: WHOLE MS-DIAL

PK$SPLASH: splash10-0002-0900000000-b5a979ae7ba9d458755a
PK$NUM_PEAK: 9
PK$PEAK: m/z int. rel.int.
  56.04984 5501836 10
  69.04469 22380032 42
  83.06039 27278080 51
  109.03967 8675328 16
  110.07135 72219392 136
  111.05504 3860683 7
  123.04263 11726336 22
  138.06645 187354880 353
  195.08772 529785088 999
//