MassBank Record: EA030309

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Caffeine; LC-ESI-ITFT; MS2; CE: 30%; R=15000; [M+H]+

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

ACCESSION: EA030309
RECORD_TITLE: Caffeine; LC-ESI-ITFT; MS2; CE: 30%; R=15000; [M+H]+
DATE: 2014.01.14
AUTHORS: Stravs M, Schymanski E, Singer H, Department of Environmental Chemistry, Eawag
LICENSE: CC BY
COPYRIGHT: Copyright (C) 2012 Eawag, Duebendorf, Switzerland
COMMENT: CONFIDENCE standard compound
COMMENT: EAWAG_UCHEM_ID 303

CH$NAME: Caffeine
CH$NAME: 1,3,7-trimethylpurine-2,6-dione
CH$NAME: 1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C8H10N4O2
CH$EXACT_MASS: 194.0804
CH$SMILES: c12c(n(c(=O)n(c1=O)C)C)ncn2C
CH$IUPAC: InChI=1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3
CH$LINK: CAS 58-08-2
CH$LINK: CHEBI 27732
CH$LINK: CHEMSPIDER 2424
CH$LINK: COMPTOX DTXSID0020232
CH$LINK: HMDB HMDB01847
CH$LINK: INCHIKEY RYYVLZVUVIJVGH-UHFFFAOYSA-N
CH$LINK: KEGG C07481
CH$LINK: PUBCHEM CID:2519

AC$INSTRUMENT: LTQ Orbitrap XL Thermo Scientific
AC$INSTRUMENT_TYPE: LC-ESI-ITFT
AC$MASS_SPECTROMETRY: MS_TYPE: MS2
AC$MASS_SPECTROMETRY: ION_MODE: POSITIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 30 % (nominal)
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE HCD
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: RESOLUTION 15000
AC$CHROMATOGRAPHY: COLUMN_NAME XBridge C18 3.5um, 2.1x50mm, Waters
AC$CHROMATOGRAPHY: FLOW_GRADIENT 90/10 at 0 min, 50/50 at 4 min, 5/95 at 17 min, 5/95 at 25 min, 90/10 at 25.1 min, 90/10 at 30 min
AC$CHROMATOGRAPHY: FLOW_RATE 200 ul/min
AC$CHROMATOGRAPHY: RETENTION_TIME 4.0 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid

MS$FOCUSED_ION: BASE_PEAK 195.088
MS$FOCUSED_ION: PRECURSOR_M/Z 195.0877
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+
MS$DATA_PROCESSING: DEPROFILE Spline
MS$DATA_PROCESSING: REANALYZE Peaks with additional N2/O included
MS$DATA_PROCESSING: RECALIBRATE loess on assigned fragments and MS1
MS$DATA_PROCESSING: WHOLE RMassBank 1.3.1

PK$SPLASH: splash10-0002-0900000000-c6803f746febffe7ab6b
PK$ANNOTATION: 138.0661 C6H8N3O+ 1 138.0662 -0.64
  195.0877 C8H11N4O2+ 1 195.0877 0.14
PK$NUM_PEAK: 2
PK$PEAK: m/z int. rel.int.
  138.0661 63831.30078125 36.0
  195.0877 1728420.0 999.0
//