ACCESSION: MSBNK-Eawag-EQ309051
RECORD_TITLE: Coumachlor; LC-ESI-QFT; MS2; CE: 15; R=35000; [M-H]-
DATE: 2015.08.25
AUTHORS: Beck B, 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 3090

CH$NAME: Coumachlor
CH$NAME: Ratilan
CH$NAME: 3-[1-(4-chlorophenyl)-3-oxobutyl]-4-hydroxychromen-2-one
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₁₉H₁₅ClO₄
CH$EXACT_MASS: 342.06589
CH$SMILES: CC(=O)CC(C1=CC=C(C=C1)Cl)C2=C(C3=CC=CC=C3OC2=O)O
CH$IUPAC: InChI=1S/C19H15ClO4/c1-11(21)10-15(12-6-8-13(20)9-7-12)17-18(22)14-4-2-3-5-16(14)24-19(17)23/h2-9,15,22H,10H2,1H3
CH$LINK: CAS 81-82-3
CH$LINK: KEGG C16805
CH$LINK: PUBCHEM CID:54682651
CH$LINK: INCHIKEY DEKWZWCFHUABHE-UHFFFAOYSA-N
CH$LINK: CHEMSPIDER 10443016
CH$LINK: COMPTOX DTXSID8041797

AC$INSTRUMENT: Q Exactive Orbitrap Thermo Scientific
AC$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$MASS_SPECTROMETRY: COLLISION_ENERGY 15 (nominal)
AC$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 12.3 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid

MS$FOCUSED_ION: BASE_PEAK 341.0588
MS$FOCUSED_ION: PRECURSOR_M/Z 341.0586
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 1.9.6

PK$SPLASH: splash10-0006-0009000000-b4d566c80f41495e2826
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  117.0345 C8H5O- 1 117.0346 -1.18
  161.0244 C9H5O3- 1 161.0244 0.08
  257.0378 C15H10ClO2- 1 257.0375 1.09
  284.0248 C16H9ClO3- 1 284.0246 0.7
  341.0585 C19H14ClO4- 1 341.0586 -0.35
PK$NUM_PEAK: 5
PK$PEAK: m/z int. rel.int.
  117.0345 447380.6 1
  161.0244 19694722.7 84
  257.0378 344411.6 1
  284.0248 6263829.6 26
  341.0585 232660263.5 999
//