ACCESSION: MSBNK-HBM4EU-HB002139
RECORD_TITLE: Etofylline; LC-ESI-QFT; MS2; CE: 75%; R=17500; [M+H]+
DATE: 2020.02.20
AUTHORS: Jean-Philippe Antignac, Yann Guitoon, LABERCA, Oniris, INRAE, UMR 1329, 44307, Nantes, France
LICENSE: CC0
COPYRIGHT: Copyright (c) 2020 by LABERCA, Oniris, INRAE, UMR 1329, 44307, Nantes, France
PUBLICATION: Oberacher H, Sasse M, Antignac J-P, Guitton Y, Debrauwer L, Jamin EL, Schulze T, Krauss M, Covaci A, Caballero-Casero N, Rosseau K, Damont A, Fenaille F, Lamoree M, Schymanski E, A European proposal for quality control and quality assurance of tandem mass spectral libraries, Environmental Sciences Europe, https://doi.org/10.1186/s12302-020-00314-9
COMMENT: CONFIDENCE Reference Standard (Level 1)
COMMENT: HBM4EU - science and policy for a healthy future (https://www.hbm4eu.eu)

CH$NAME: Etofylline
CH$NAME: 7-(2-Hydroxyethyl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₉H₁₂N₄O₃
CH$EXACT_MASS: 224.0909
CH$SMILES: CN1C2=C(N(CCO)C=N2)C(=O)N(C)C1=O
CH$IUPAC: InChI=1S/C9H12N4O3/c1-11-7-6(8(15)12(2)9(11)16)13(3-4-14)5-10-7/h5,14H,3-4H2,1-2H3
CH$LINK: CAS 519-37-9
CH$LINK: COMPTOX DTXSID5023031
CH$LINK: INCHIKEY NWPRCRWQMGIBOT-UHFFFAOYSA-N
CH$LINK: PUBCHEM CID:1892

AC$INSTRUMENT: Q Exactive Thermo Fisher Scientific
AC$INSTRUMENT_TYPE: LC-ESI-QFT
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE POSITIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE HCD
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 75% (nominal)
AC$MASS_SPECTROMETRY: RESOLUTION 17500
AC$CHROMATOGRAPHY: COLUMN_NAME Hypersil GOLD 1.9 um 2.1 x 100 mm Thermo Fisher Scientific
AC$CHROMATOGRAPHY: FLOW_GRADIENT 95/5 at 0 min, 95/5 at 2.4 min, 75/25 at 4.5 min, 30/70 at 11 min, 0/100 at 14 min, 0/100 at 16.5 min, 95/5 at 19 min, 95/5 at 25 min
AC$CHROMATOGRAPHY: FLOW_RATE 400 uL/min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% acetic acid
AC$CHROMATOGRAPHY: SOLVENT B acetonitrile with 0.1% acetic acid

MS$FOCUSED_ION: PRECURSOR_M/Z 225.0983
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+

PK$SPLASH: splash10-00di-4900000000-7e10dd679c0117cee355
PK$NUM_PEAK: 19
PK$PEAK: m/z int. rel.int.
  69.0456 34349368.9 205
  72.0452 293057.7 2
  81.0455 670442.6 4
  83.0247 3503500.7 21
  93.0454 599975.1 4
  94.0406 445848.5 3
  95.0246 624354.9 4
  96.0562 57453337.1 344
  97.0402 2698635.7 16
  108.0561 847780 5
  109.0276 1674186.1 10
  110.0718 894034.7 5
  113.035 363358.2 2
  120.056 628362.5 4
  124.0508 166984448 999
  137.0824 1292125.7 8
  140.0454 733061.7 4
  142.0614 10487959.2 63
  181.072 31950804.3 191
//