MassBank Record: AU107801

Home Search Record Index Data Privacy Imprint


Dexamethasone; LC-ESI-QTOF; MS2; CE: 10 eV; R=35000; [M+H]+
Mass Spectrum
Chemical Structure
Generated by the Chemistry Development Kit (http://github.com/cdk) \n
metabolomics-usi visualisation

ACCESSION: AU107801
RECORD_TITLE: Dexamethasone; LC-ESI-QTOF; MS2; CE: 10 eV; R=35000; [M+H]+
DATE: 2015.12.07
AUTHORS: Nikiforos Alygizakis, Nikolaos Thomaidis, University of Athens
LICENSE: CC BY-SA
COPYRIGHT: Copyright (C) 2015 Department of Chemistry, University of Athens
COMMENT: CONFIDENCE standard compound
COMMENT: INTERNAL_ID 1078

CH$NAME: Dexamethasone CH$NAME: (8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-11,17-dihydroxy-17-(2-hydroxyacetyl)-10,13,16-trimethyl-6,7,8,11,12,14,15,16-octahydrocyclopenta[a]phenanthren-3-one CH$COMPOUND_CLASS: N/A; Environmental Standard CH$FORMULA: C22H29FO5 CH$EXACT_MASS: 392.1999022 CH$SMILES: C[C@@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)CO CH$IUPAC: InChI=1S/C22H29FO5/c1-12-8-16-15-5-4-13-9-14(25)6-7-19(13,2)21(15,23)17(26)10-20(16,3)22(12,28)18(27)11-24/h6-7,9,12,15-17,24,26,28H,4-5,8,10-11H2,1-3H3/t12-,15+,16+,17+,19+,20+,21+,22+/m1/s1 CH$LINK: CAS 50-02-2 CH$LINK: CHEBI 41879 CH$LINK: KEGG D00292 CH$LINK: PUBCHEM CID:5743 CH$LINK: INCHIKEY UREBDLICKHMUKA-CXSFZGCWSA-N CH$LINK: CHEMSPIDER 5541 CH$LINK: COMPTOX DTXSID3020384
AC$INSTRUMENT: Bruker maXis Impact AC$INSTRUMENT_TYPE: LC-ESI-QTOF AC$MASS_SPECTROMETRY: MS_TYPE MS2 AC$MASS_SPECTROMETRY: ION_MODE POSITIVE 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 8.3 min AC$CHROMATOGRAPHY: SOLVENT A 90:10 water:methanol with 0.01% formic acid and 5mM ammonium formate AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.01% formic acid and 5mM ammonium formate
MS$FOCUSED_ION: BASE_PEAK 150.1113 MS$FOCUSED_ION: PRECURSOR_M/Z 393.2072 MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+ MS$DATA_PROCESSING: RECALIBRATE identity on assigned fragments and MS1 MS$DATA_PROCESSING: REANALYZE Peaks with additional N2/O included MS$DATA_PROCESSING: WHOLE RMassBank 2.0.3
PK$SPLASH: splash10-006w-0719000000-d4feef3f83ca022aa94d PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm) 149.0217 C8H5O3+ 2 149.0233 -10.75 167.032 C8H7O4+ 3 167.0339 -10.99 261.1429 C16H21O3+ 1 261.1485 -21.5 279.1606 C13H24FO5+ 3 279.1602 1.44 355.1902 C22H27O4+ 2 355.1904 -0.51 373.2021 C22H29O5+ 1 373.201 3.14 374.205 C22H30O5+ 1 374.2088 -10.16 393.2083 C22H30FO5+ 1 393.2072 2.8 394.2134 C20H30N2O6+ 1 394.2098 9.03 PK$NUM_PEAK: 9 PK$PEAK: m/z int. rel.int. 149.0217 2128 999 167.032 688 322 261.1429 312 146 279.1606 456 214 355.1902 544 255 373.2021 1036 486 374.205 320 150 393.2083 1136 533 394.2134 456 214 //