ACCESSION: MSBNK-RIKEN_ReSpect-PM000321
RECORD_TITLE: Isoquercetin; LC-ESI-QQ; MS2
DATE: 2006.04.19
AUTHORS: Parejo I, et al.
LICENSE: CC BY-NC
COPYRIGHT: Copyright(C) 2012 Plant Science Center, RIKEN
PUBLICATION: Parejo, I.; Jauregui, O.; Sánchez-Rabaneda, F.; Viladomat, F.; Bastida, J.; Codina, C. Separation and Characterization of Phenolic Compounds in Fennel (Foeniculum Vulgare) Using Liquid Chromatography-Negative Electrospray Ionization Tandem Mass Spectrometry. Journal of Agricultural and Food Chemistry 2004, 52 (12), 3679–87. DOI:10.1021/jf030813h
COMMENT: 725

CH$NAME: Isoquercetin
CH$COMPOUND_CLASS: CLASS1 Flavonoid CLASS2 Flavonol CLASS3 Quercetin glycoside
CH$FORMULA: C₂₁H₂₀O₁₂
CH$EXACT_MASS: 464.379
CH$SMILES: O=c1c(O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)c(-c2ccc(O)c(O)c2)oc2cc(O)cc(O)c12
CH$IUPAC: InChI=1S/C21H20O12/c22-6-13-15(27)17(29)18(30)21(32-13)33-20-16(28)14-11(26)4-8(23)5-12(14)31-19(20)7-1-2-9(24)10(25)3-7/h1-5,13,15,17-18,21-27,29-30H,6H2/t13-,15-,17+,18-,21+/m1/s1
CH$LINK: CAS 482-35-9
CH$LINK: INCHIKEY OVSQVDMCBVZWGM-QSOFNFLRSA-N
CH$LINK: PUBCHEM CID:5280804
SP$SAMPLE: Foeniculum vulgare

AC$INSTRUMENT: API 3000 triple-quadrupole mass spectrometer (PerkinElmer Sciex, Concord, ON, Canada)
AC$INSTRUMENT_TYPE: LC-ESI-QQ
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 35
AC$CHROMATOGRAPHY: SOLVENT H2O/NH3CN/HCOOH

MS$FOCUSED_ION: ION_TYPE [M-H]-
MS$FOCUSED_ION: PRECURSOR_M/Z 463

PK$SPLASH: splash10-0zmi-0494000000-024d48cbd659014c8d70
PK$NUM_PEAK: 4
PK$PEAK: m/z int. rel.int.
  151.0 100.0 999
  255.0 100.0 999
  271.0 100.0 999
  301.0 100.0 999
//