ACCESSION: MSBNK-RIKEN-PR309077
RECORD_TITLE: FA 18:4+2O; LC-ESI-QTOF; MS2
DATE: 2019.03.28
AUTHORS: Tetsuya Mori, Center for Sustainable Resource Science, RIKEN
LICENSE: CC BY-NC-SA
PUBLICATION: Tsugawa H., Nakabayashi R., Mori T., Yamada Y., Takahashi M., Rai A., Sugiyama R., Yamamoto H., Nakaya T., Yamazaki M., Kooke R., Bac-Molenaar JA., Oztolan-Erol N., Keurentjes JJB., Arita M., Saito K. (2019) "A cheminformatics approach to characterize metabolomes in stable-isotope-labeled organisms" Nature Methods 16(4):295-298. [doi:10.1038/s41592-019-0358-2]
COMMENT: Annotation level-3

CH$NAME: FA 18:4+2O
CH$COMPOUND_CLASS: Oxidized fatty acids
CH$FORMULA: C₁₈H₂₈O₄
CH$EXACT_MASS: 308.418
CH$SMILES: O=C(O)CCCCCCCC(=O)C=CC=CC=CC(O)CC
CH$IUPAC: InChI=1S/C18H28O4/c1-2-16(19)12-8-6-7-10-14-17(20)13-9-4-3-5-11-15-18(21)22/h6-8,10,12,14,16,19H,2-5,9,11,13,15H2,1H3,(H,21,22)
CH$LINK: INCHIKEY KLFMLBSZQZVKDC-UHFFFAOYSA-N

AC$INSTRUMENT: LC, Waters Acquity UPLC System; MS, Waters Xevo G2 Q-Tof
AC$INSTRUMENT_TYPE: LC-ESI-QTOF
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 6V
AC$MASS_SPECTROMETRY: DESOLVATION_GAS_FLOW 800/h
AC$MASS_SPECTROMETRY: DESOLVATION_TEMPERATURE 450 C
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$CHROMATOGRAPHY: CAPILLARY_VOLTAGE +3.00 kV
AC$CHROMATOGRAPHY: COLUMN_NAME Acquity bridged ethyl hybrid C18 (1.7 um, 2.1 mm * 100 mm, Waters)
AC$CHROMATOGRAPHY: COLUMN_TEMPERATURE 40 C
AC$CHROMATOGRAPHY: FLOW_GRADIENT A/B = (99.5%/0.5% at 0 min, 99.5%/0.5% at 0.1 min, 20%/80% at 10 min, 0.5%/99.5% at 10.1 min, 0.5%/99.5% at 12.0 min, 99.5%/0.5% at 12.1 min, 99.5%/0.5% at 15.0 min)
AC$CHROMATOGRAPHY: FLOW_RATE 0.3 ml/min at 0 min, 0.3 ml/min at 10 min, 0.4 ml/min at 10.1 min, 0.4 ml/min at 14.4 min, 0.3 ml/min at 14.5 min
AC$CHROMATOGRAPHY: RETENTION_TIME 8.46
AC$CHROMATOGRAPHY: SOLVENT A water including 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B acetonitrile including 0.1% formic acid

MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-
MS$FOCUSED_ION: PRECURSOR_M/Z 307.191

PK$SPLASH: splash10-0a4r-0977000000-a7ce7f865c60f210a867
PK$NUM_PEAK: 14
PK$PEAK: m/z int. rel.int.
  125.09908 17.0 90
  137.09616 157.0 830
  139.11159 18.0 95
  167.10857 23.0 122
  185.11505 17.0 90
  210.12965 17.0 90
  221.87283 17.0 90
  222.17509 17.0 90
  223.13528 73.0 386
  289.16843 19.0 100
  289.18594 17.0 90
  291.1871 20.0 106
  293.21274 16.0 85
  307.18909 189.0 999
//