ACCESSION: MSBNK-Fiocruz-FIO01005
RECORD_TITLE: Isosilybin B; LC-ESI-QTOF; MS2; [M-H]-; CE: 20eV
DATE: 2020.06.09
AUTHORS: Markus Kohlhoff, Natural Product Chemistry Lab (FIOCRUZ Minas, Brazil)
LICENSE: CC BY
COPYRIGHT: (c) Institute Rene Rachou (FIOCRUZ Minas, Brazil)
COMMENT: [Raw Data] CBA83_Isosilybin-B_neg_20eV.txt

CH$NAME: Isosilybin B
CH$COMPOUND_CLASS: Natural Product; Flavonoids
CH$FORMULA: C₂₅H₂₂O₁₀
CH$EXACT_MASS: 482.12130
CH$SMILES: COc(c(O)5)cc(cc5)C(O1)C(CO)Oc(c2)c(ccc2[C@@H](O3)[C@@H](O)C(=O)c(c(O)4)c(cc(O)c4)3)1
CH$IUPAC: InChI=1S/C25H22O10/c1-32-17-6-11(2-4-14(17)28)24-20(10-26)33-18-7-12(3-5-16(18)34-24)25-23(31)22(30)21-15(29)8-13(27)9-19(21)35-25/h2-9,20,23-29,31H,10H2,1H3/t20?,23-,24?,25+/m0/s1
CH$LINK: KEGG C16808
CH$LINK: INCHIKEY FDQAOULAVFHKBX-DBMPWETRSA-N

AC$INSTRUMENT: maXis (Bruker Daltonics)
AC$INSTRUMENT_TYPE: LC-ESI-QTOF
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: CAPILLARY_VOLTAGE 4500 V
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 20 eV
AC$MASS_SPECTROMETRY: COLLISION_GAS Nitrogen
AC$MASS_SPECTROMETRY: DESOLVATION_GAS_FLOW 8 l/min
AC$MASS_SPECTROMETRY: DESOLVATION_TEMPERATURE 200 C
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE CID
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: NEBULIZER 3.0 bar
AC$CHROMATOGRAPHY: COLUMN_NAME Shimadzu Shim-Pack XR-ODS III; C18; 2.2um; 80A; 2.0x150mm
AC$CHROMATOGRAPHY: COLUMN_TEMPERATURE 40 C
AC$CHROMATOGRAPHY: FLOW_GRADIENT 5-100%B in 10min
AC$CHROMATOGRAPHY: FLOW_RATE 400ul/min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B acetonitrile with 0.1% formic acid

MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-
MS$DATA_PROCESSING: FIND_PEAK centroid
MS$DATA_PROCESSING: WHOLE Mass++ 2.7.5

PK$SPLASH: splash10-001i-0000900000-4af14d74589e41658ad6
PK$NUM_PEAK: 17
PK$PEAK: m/z int. rel.int.
  125.024200 9052.000000 35
  178.999400 3628.000000 14
  180.007100 3815.000000 15
  257.046000 7109.000000 28
  283.024900 4581.000000 18
  301.035300 18672.000000 73
  302.040400 4580.000000 18
  435.106300 4688.000000 18
  437.121900 5878.000000 23
  453.117000 56561.000000 221
  454.120400 15011.000000 59
  463.101200 11097.000000 43
  464.104200 3137.000000 12
  481.111900 256254.000000 999
  481.187000 4504.000000 18
  482.115000 72272.000000 282
  483.117600 12846.000000 50
//