ACCESSION: MSBNK-Eawag-EQ333603
RECORD_TITLE: Allopurinol; LC-ESI-QFT; MS2; CE: 45; R=35000; [M+H]+
DATE: 2015.08.25
AUTHORS: Otto J, Stravs M, Schymanski E, Singer H, Department of Environmental Chemistry, Eawag
LICENSE: CC BY
COPYRIGHT: Copyright (C) 2015 Eawag, Duebendorf, Switzerland
COMMENT: CONFIDENCE standard compound
COMMENT: EAWAG_UCHEM_ID 3336

CH$NAME: Allopurinol
CH$NAME: 1,2-dihydropyrazolo[3,4-d]pyrimidin-4-one
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₅H₄N₄O
CH$EXACT_MASS: 136.03851
CH$SMILES: C1=NNC2=C1C(=NC=N2)O
CH$IUPAC: InChI=1S/C5H4N4O/c10-5-3-1-8-9-4(3)6-2-7-5/h1-2H,(H2,6,7,8,9,10)
CH$LINK: CAS 315-30-0
CH$LINK: INCHIKEY OFCNXPDARWKPPY-UHFFFAOYSA-N
CH$LINK: CHEMSPIDER 2010
CH$LINK: COMPTOX DTXSID4022573
CH$LINK: PUBCHEM CID:135401907

AC$INSTRUMENT: Q Exactive Orbitrap Thermo Scientific
AC$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$MASS_SPECTROMETRY: COLLISION_ENERGY 45 (nominal)
AC$MASS_SPECTROMETRY: RESOLUTION 35000
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 1.2 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid

MS$FOCUSED_ION: BASE_PEAK 137.0458
MS$FOCUSED_ION: PRECURSOR_M/Z 137.0458
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+
MS$DATA_PROCESSING: DEPROFILE vendor picking in Proteowizard
MS$DATA_PROCESSING: RECALIBRATE loess on assigned fragments and MS1
MS$DATA_PROCESSING: REANALYZE Peaks with additional N2/O included
MS$DATA_PROCESSING: WHOLE RMassBank 1.9.6

PK$SPLASH: splash10-000i-0900000000-43ea9e7d5a0f94da482f
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  54.0339 C3H4N+ 1 54.0338 0.45
  81.0447 C4H5N2+ 1 81.0447 0.07
  94.0399 C4H4N3+ 1 94.04 -0.36
  109.0396 C5H5N2O+ 1 109.0396 0.1
  110.0349 C4H4N3O+ 1 110.0349 -0.07
  119.0351 C5H3N4+ 1 119.0352 -0.69
  120.0192 C5H2N3O+ 1 120.0192 -0.23
  137.0459 C5H5N4O+ 1 137.0458 0.46
PK$NUM_PEAK: 8
PK$PEAK: m/z int. rel.int.
  54.0339 226429.9 2
  81.0447 580294.2 7
  94.0399 2363880.5 30
  109.0396 908640.8 11
  110.0349 3621983.5 46
  119.0351 156830.6 2
  120.0192 893051.1 11
  137.0459 78078424 999
//