ACCESSION: MSBNK-Eawag-EA020855
RECORD_TITLE: Mefenamic acid; LC-ESI-ITFT; MS2; CE: 60%; R=7500; [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 208

CH$NAME: Mefenamic acid
CH$NAME: 2-(2,3-dimethylanilino)benzoic acid
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₁₅H₁₅NO₂
CH$EXACT_MASS: 241.1103
CH$SMILES: c1(c(cccc1)C(O)=O)Nc1c(c(ccc1)C)C
CH$IUPAC: InChI=1S/C15H15NO2/c1-10-6-5-9-13(11(10)2)16-14-8-4-3-7-12(14)15(17)18/h3-9,16H,1-2H3,(H,17,18)
CH$LINK: CAS 61-68-7
CH$LINK: KEGG C02168
CH$LINK: PUBCHEM CID:4044
CH$LINK: INCHIKEY HYYBABOKPJLUIN-UHFFFAOYSA-N
CH$LINK: CHEMSPIDER 3904
CH$LINK: COMPTOX DTXSID5023243

AC$INSTRUMENT: LTQ Orbitrap XL Thermo Scientific
AC$INSTRUMENT_TYPE: LC-ESI-ITFT
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE HCD
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 60 % (nominal)
AC$MASS_SPECTROMETRY: RESOLUTION 7500
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 14.6 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid

MS$FOCUSED_ION: BASE_PEAK 240.1032
MS$FOCUSED_ION: PRECURSOR_M/Z 240.103
MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-
MS$DATA_PROCESSING: DEPROFILE Spline
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 1.3.1

PK$SPLASH: splash10-0002-0900000000-0aaa97d98cb6e792e5da
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  179.0865 C14H11- 1 179.0866 -0.64
  180.082 C13H10N- 1 180.0819 0.76
  192.082 C14H10N- 1 192.0819 0.45
  194.0976 C14H12N- 1 194.0975 0.35
  196.1133 C14H14N- 1 196.1132 0.85
PK$NUM_PEAK: 5
PK$PEAK: m/z int. rel.int.
  179.0865 49539.2 29
  180.082 120379.8 71
  192.082 149226 89
  194.0976 94653.7 56
  196.1133 1673682.2 999
//