ACCESSION: MSBNK-ACES_SU-AS000271
RECORD_TITLE: Trimethoprim; LC-ESI-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$NAME: Trimethoprim
CH$NAME: 5-[(3,4,5-trimethoxyphenyl)methyl]pyrimidine-2,4-diamine
CH$COMPOUND_CLASS: Drugs; Antiinfective Agents; Amines; Aminopyridines; Cytochrome P-450 Enzyme Inhibitors; Cytochrome P-450 CYP2C8 Inhibitors
CH$FORMULA: C₁₄H₁₈N₄O₃
CH$EXACT_MASS: 290.1379
CH$SMILES: N=1C=C(C(=NC1N)N)CC2=CC(OC)=C(OC)C(OC)=C2
CH$IUPAC: InChI=1S/C14H18N4O3/c1-19-10-5-8(6-11(20-2)12(10)21-3)4-9-7-17-14(16)18-13(9)15/h5-7H,4H2,1-3H3,(H4,15,16,17,18)

AC$INSTRUMENT: QExactive Orbitrap HF-X (Thermo Scientific)
AC$INSTRUMENT_TYPE: LC-ESI-QFT
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$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 9.585800
AC$CHROMATOGRAPHY: UOA_RTI 246.0600
AC$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$FOCUSED_ION: BASE_PEAK 289.13138
MS$FOCUSED_ION: PRECURSOR_M/Z 289.1310
MS$FOCUSED_ION: ION_TYPE [M-H]-
MS$DATA_PROCESSING: WHOLE MS-DIAL

PK$SPLASH: splash10-000i-0090000000-1d6ba730acab26a48492
PK$NUM_PEAK: 15
PK$PEAK: m/z int. rel.int.
  198.0545 1515256 62
  199.06291 247502 10
  201.03027 1314865 53
  202.03915 637556 26
  212.93541 249208 10
  215.0558 273402 11
  217.06119 830506 34
  226.04926 1285444 52
  227.05772 10886400 442
  243.05194 3347530 136
  244.06027 687986 28
  247.1091 344801 14
  259.08362 1241348 50
  274.10693 6203867 252
  289.13138 24598528 999
//