ACCESSION: MSBNK-BS-BS003250
RECORD_TITLE: Baicalein; LC-ESI-QTOF; MS2; CE:20 eV; [M-H]-
DATE: 2017.12.01 (Created 2013.11.18)
AUTHORS: Plant Biology, The Noble Foundation, Ardmore, OK, US/Dennis Fine, Daniel Wherritt, and Lloyd Sumner
LICENSE: CC BY-NC-SA

CH$NAME: Baicalein
CH$COMPOUND_CLASS: Natural Product; N/A
CH$FORMULA: C₁₅H₁₀O₅
CH$EXACT_MASS: 270.0528
CH$SMILES: C1(=C(C(=C(C(=C1[H])[H])C2=C(C(=O)C3=C(O2)C(=C(C(=C3O[H])O[H])O[H])[H])[H])[H])[H])[H]
CH$IUPAC: InChI=1S/C15H10O5/c16-9-6-11(8-4-2-1-3-5-8)20-12-7-10(17)14(18)15(19)13(9)12/h1-7,17-19H
CH$LINK: CAS 27462-75-5
CH$LINK: COMPTOX DTXSID2022389
CH$LINK: INCHIKEY FXNFHKRTJBSTCS-UHFFFAOYSA-N
CH$LINK: PUBCHEM CID:5281605

AC$INSTRUMENT: Bruker impact HD
AC$INSTRUMENT_TYPE: LC-ESI-QTOF
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 20 eV
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: ISOLATION_WIDTH 5
AC$MASS_SPECTROMETRY: PEAK_WIDTH 0.013
AC$MASS_SPECTROMETRY: MASS_RANGE_M/Z 94.8757-1505.12
AC$CHROMATOGRAPHY: COLUMN_NAME Waters Acquity BEH C18 1.7um x 2.1 x 150 mm
AC$CHROMATOGRAPHY: FLOW_GRADIENT 95/5 at 0 min, 20/80 at 35 min; 5/95 at 35 min, 5/95 at 38 min; 95/5 at 38.1 min, 95/5 at 45 min
AC$CHROMATOGRAPHY: FLOW_RATE FLOW_RATE 560 uL / min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.05% formic acid
AC$CHROMATOGRAPHY: SOLVENT B acetonitrile with 0.05 % formic acid
AC$CHROMATOGRAPHY: RETENTION_TIME 685.8 sec

MS$FOCUSED_ION: PRECURSOR_M/Z 269.0462
MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-
MS$DATA_PROCESSING: WHOLE convert from Bruker Library Editor (https://github.com/MassBank/MassBank2NIST)

PK$SPLASH: splash10-014i-0090000000-5c474d2508a10bd7c6e7
PK$NUM_PEAK: 9
PK$PEAK: m/z int. rel.int.
  137.0074 31 31
  239.0398 542 542
  240.0431 71 71
  241.0518 26 26
  251.0372 22 22
  267.0307 278 278
  268.0336 42 42
  269.0462 999 999
  270.0488 94 94
//