ACCESSION: MSBNK-Eawag-EQ377201
RECORD_TITLE: Oxypurinol; LC-ESI-QFT; MS2; CE: 15%; R=15000; [M+H]+
DATE: 2021.03.16
AUTHORS: K. Kiefer [dtc], J. Hollender [dtc], H. Singer [dtc], B. Lauper [com]
LICENSE: CC BY-SA
COPYRIGHT: Copyright (C) Eawag 2019
PUBLICATION: Kiefer, K., Du, L., Singer, H., Hollender, J.. Identification of LC-HRMS Nontarget Signals in Groundwater After Source Related Prioritization. Water Research 2021, 196. DOI: https://doi.org/10.1016/j.watres.2021.116994
COMMENT: CONFIDENCE standard compound
COMMENT: UCHEM_ID 3772

CH$NAME: Oxypurinol
CH$NAME: 1,2-dihydropyrazolo[3,4-d]pyrimidine-4,6-dione
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₅H₄N₄O₂
CH$EXACT_MASS: 152.0334
CH$SMILES: C1=C2C(=NC(=O)NC2=O)NN1
CH$IUPAC: InChI=1S/C5H4N4O2/c10-4-2-1-6-9-3(2)7-5(11)8-4/h1H,(H3,6,7,8,9,10,11)
CH$LINK: CAS 2465-59-0
CH$LINK: CHEBI 28315
CH$LINK: CHEMSPIDER 4483
CH$LINK: COMPTOX DTXSID4035209
CH$LINK: INCHIKEY HXNFUBHNUDHIGC-UHFFFAOYSA-N
CH$LINK: KEGG C07599
CH$LINK: PUBCHEM CID:135398752

AC$INSTRUMENT: Orbitrap Exploris 240 Thermo Scientific
AC$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$MASS_SPECTROMETRY: COLLISION_ENERGY 15 % (nominal)
AC$MASS_SPECTROMETRY: RESOLUTION 15000
AC$MASS_SPECTROMETRY: MASS_RANGE_M/Z NA-NA
AC$CHROMATOGRAPHY: COLUMN_NAME Atlantis C18 3um, 3.0x150mm, Waters
AC$CHROMATOGRAPHY: FLOW_GRADIENT 100/0 at 0 min, 100/0 at 1.5 min, 5/95 at 18.5 min, 5/95 at 28.5 min, 100/0 at 29 min, 100/0 at 33 min
AC$CHROMATOGRAPHY: FLOW_RATE 300 uL/min
AC$CHROMATOGRAPHY: RETENTION_TIME 8.015 min

MS$FOCUSED_ION: BASE_PEAK 132.9583
MS$FOCUSED_ION: PRECURSOR_M/Z 153.0407
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+
MS$FOCUSED_ION: PRECURSOR_INTENSITY 21820776
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 2.99.4

PK$SPLASH: splash10-0udi-0900000000-58710804f30f487ffeca
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  135.0302 C5H3N4O+ 1 135.0301 0.62
  136.0142 C5H2N3O2+ 1 136.0142 0.35
  153.0408 C5H5N4O2+ 1 153.0407 0.37
PK$NUM_PEAK: 4
PK$PEAK: m/z int. rel.int.
  134.9584 89914.7 4
  135.0302 43915.1 2
  136.0142 325960.5 17
  153.0408 18816432 999
//