ACCESSION: MSBNK-Athens_Univ-AU239357
RECORD_TITLE: Cortisone; LC-ESI-QTOF; MS2; CE: 10 eV; R=35000; [M-H]-
DATE: 2019.03.29
AUTHORS: Nikiforos Alygizakis, Katerina Galani, Nikolaos Thomaidis, University of Athens
LICENSE: CC BY
COPYRIGHT: Copyright (C) 2019 Department of Chemistry, University of Athens
COMMENT: CONFIDENCE standard compound
COMMENT: INTERNAL_ID 2393

CH$NAME: Cortisone
CH$NAME: (8S,9S,10R,13S,14S,17R)-17-hydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-1,2,6,7,8,9,12,14,15,16-decahydrocyclopenta[a]phenanthrene-3,11-dione
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₂₁H₂₈O₅
CH$EXACT_MASS: 360.1936740
CH$SMILES: C[C@]12CC(=O)[C@H]3[C@@H](CCC4=CC(=O)CC[C@]34C)[C@@H]1CC[C@]2(O)C(=O)CO
CH$IUPAC: InChI=1S/C21H28O5/c1-19-7-5-13(23)9-12(19)3-4-14-15-6-8-21(26,17(25)11-22)20(15,2)10-16(24)18(14)19/h9,14-15,18,22,26H,3-8,10-11H2,1-2H3/t14-,15-,18+,19-,20-,21-/m0/s1
CH$LINK: CAS 53-06-5
CH$LINK: CHEBI 16962
CH$LINK: KEGG C00762
CH$LINK: LIPIDMAPS LMST02030090
CH$LINK: PUBCHEM CID:222786
CH$LINK: INCHIKEY MFYSYFVPBJMHGN-ZPOLXVRWSA-N
CH$LINK: CHEMSPIDER 193441
CH$LINK: COMPTOX DTXSID5022857

AC$INSTRUMENT: Bruker maXis Impact
AC$INSTRUMENT_TYPE: LC-ESI-QTOF
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE CID
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 10 eV
AC$MASS_SPECTROMETRY: RESOLUTION 35000
AC$CHROMATOGRAPHY: COLUMN_NAME Acclaim RSLC C18 2.2um, 2.1x100mm, Thermo
AC$CHROMATOGRAPHY: FLOW_GRADIENT 99/1 at 0-1 min, 61/39 at 3 min, 0.1/99.9 at 14-16 min, 99/1 at 16.1-20 min
AC$CHROMATOGRAPHY: FLOW_RATE 200 uL/min at 0-3 min, 400 uL/min at 14 min, 480 uL/min at 16-19 min, 200 uL/min at 19.1-20 min
AC$CHROMATOGRAPHY: RETENTION_TIME 7.310 min
AC$CHROMATOGRAPHY: SOLVENT A 90:10 water:methanol with 5mM ammonium acetate
AC$CHROMATOGRAPHY: SOLVENT B methanol with 5mM ammonium acetate

MS$FOCUSED_ION: BASE_PEAK 395.1611
MS$FOCUSED_ION: PRECURSOR_M/Z 359.1864
MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-
MS$DATA_PROCESSING: RECALIBRATE identity on assigned fragments and MS1
MS$DATA_PROCESSING: WHOLE RMassBank 2.10.0

PK$SPLASH: splash10-004i-0009000000-dc679aa392622908b268
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  301.1768 C19H25O3- 1 301.1809 -13.57
  301.184 C19H25O3- 1 301.1809 10.17
  327.1602 C20H23O4- 1 327.1602 -0.03
  329.173 C20H25O4- 1 329.1758 -8.68
  330.1793 C19[13]CH25O4- 1 330.1786 1.89
PK$NUM_PEAK: 5
PK$PEAK: m/z int. rel.int.
  301.1768 516 169
  301.184 532 174
  327.1602 444 145
  329.173 3044 999
  330.1793 868 284
//