ACCESSION: MSBNK-Eawag-EA262101
RECORD_TITLE: Methylprednisolone; LC-ESI-ITFT; MS2; CE: 35%; R=7500; [M+H]+
DATE: 2014.01.14
AUTHORS: Stravs M, Schymanski E, Singer H, Department of Environmental Chemistry, Eawag
LICENSE: CC BY
COPYRIGHT: Copyright (C) 2012 Eawag, Duebendorf, Switzerland
COMMENT: CONFIDENCE standard compound
COMMENT: EAWAG_UCHEM_ID 2621
CH$NAME: Methylprednisolone
CH$NAME: (6alpha,11beta)-11,17,21-trihydroxy-6-methylpregna-1,4-diene-3,20-dione
CH$NAME: (6S,8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-17-(2-hydroxy-1-oxoethyl)-6,10,13-trimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C22H30O5
CH$EXACT_MASS: 374.2093
CH$SMILES: [H][C@@]12CC[C@](O)(C(=O)CO)[C@@]1(C)C[C@H](O)[C@@]3([H])[C@@]2([H])C[C@]([H])(C)C4=CC(=O)C=C[C@]34C
CH$IUPAC: InChI=1S/C22H30O5/c1-12-8-14-15-5-7-22(27,18(26)11-23)21(15,3)10-17(25)19(14)20(2)6-4-13(24)9-16(12)20/h4,6,9,12,14-15,17,19,23,25,27H,5,7-8,10-11H2,1-3H3/t12-,14-,15-,17-,19+,20-,21-,22-/m0/s1
CH$LINK: CAS
83-43-2
CH$LINK: CHEBI
6888
CH$LINK: KEGG
D00407
CH$LINK: PUBCHEM
CID:6741
CH$LINK: INCHIKEY
VHRSUDSXCMQTMA-PJHHCJLFSA-N
CH$LINK: CHEMSPIDER
6485
CH$LINK: COMPTOX
DTXSID7023300
AC$INSTRUMENT: LTQ Orbitrap XL Thermo Scientific
AC$INSTRUMENT_TYPE: LC-ESI-ITFT
AC$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 35 % (nominal)
AC$MASS_SPECTROMETRY: RESOLUTION 7500
AC$CHROMATOGRAPHY: COLUMN_NAME XBridge C18 3.5um, 2.1x50mm, Waters
AC$CHROMATOGRAPHY: FLOW_GRADIENT 90/10 at 0 min, 50/50 at 4 min, 5/95 at 17 min, 5/95 at 25 min, 90/10 at 25.1 min, 90/10 at 30 min
AC$CHROMATOGRAPHY: FLOW_RATE 200 ul/min
AC$CHROMATOGRAPHY: RETENTION_TIME 9.2 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid
MS$FOCUSED_ION: BASE_PEAK 375.2176
MS$FOCUSED_ION: PRECURSOR_M/Z 375.2166
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+
MS$DATA_PROCESSING: DEPROFILE Spline
MS$DATA_PROCESSING: RECALIBRATE loess on assigned fragments and MS1
MS$DATA_PROCESSING: REANALYZE Peaks with additional N2/O included
MS$DATA_PROCESSING: WHOLE RMassBank 1.3.1
PK$SPLASH: splash10-0a4i-0009000000-3fe2869617af3697e2ed
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
161.0959 C11H13O+ 1 161.0961 -0.88
279.1745 C20H23O+ 1 279.1743 0.5
293.1539 C20H21O2+ 1 293.1536 0.97
297.1499 C19H21O3+ 1 297.1485 4.57
297.1846 C20H25O2+ 1 297.1849 -1.2
303.174 C22H23O+ 1 303.1743 -1.19
321.1848 C22H25O2+ 1 321.1849 -0.18
339.1953 C22H27O3+ 1 339.1955 -0.53
357.206 C22H29O4+ 1 357.206 -0.04
PK$NUM_PEAK: 9
PK$PEAK: m/z int. rel.int.
161.0959 7661.9 21
279.1745 12229.9 34
293.1539 33641.7 94
297.1499 2730.3 7
297.1846 5546.6 15
303.174 20808.4 58
321.1848 66255.1 186
339.1953 133498.1 376
357.206 354654.6 999
//
