MassBank Record: EQ323901

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Levofloxacin; LC-ESI-QFT; MS2; CE: 15; R=35000; [M+H]+
Mass Spectrum
Chemical Structure
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ACCESSION: EQ323901
RECORD_TITLE: Levofloxacin; LC-ESI-QFT; MS2; CE: 15; R=35000; [M+H]+
DATE: 2015.08.25
AUTHORS: Beck B, Stravs M, Schymanski E, Singer H, Department of Environmental Chemistry, Eawag
LICENSE: CC BY
COPYRIGHT: Copyright (C) 2015 Eawag, Duebendorf, Switzerland
COMMENT: CONFIDENCE standard compound
COMMENT: EAWAG_UCHEM_ID 3239

CH$NAME: Levofloxacin CH$NAME: (3S)-9-Fluoro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-2,3-dihydro-7H-[1,4]oxazino[2,3,4-ij]quinoline-6-carboxylic acid CH$COMPOUND_CLASS: N/A; Environmental Standard CH$FORMULA: C18H20FN3O4 CH$EXACT_MASS: 361.14378 CH$SMILES: C[C@H]1COc2c3n1cc(c(=O)c3cc(c2N4CCN(CC4)C)F)C(=O)O CH$IUPAC: InChI=1S/C18H20FN3O4/c1-10-9-26-17-14-11(16(23)12(18(24)25)8-22(10)14)7-13(19)15(17)21-5-3-20(2)4-6-21/h7-8,10H,3-6,9H2,1-2H3,(H,24,25)/t10-/m0/s1 CH$LINK: CAS 100986-85-4 CH$LINK: HMDB HMDB01929 CH$LINK: KEGG D08120 CH$LINK: PUBCHEM CID:149096 CH$LINK: INCHIKEY GSDSWSVVBLHKDQ-JTQLQIEISA-N CH$LINK: CHEMSPIDER 131410 CH$LINK: COMPTOX DTXSID0041060
AC$INSTRUMENT: Q Exactive Orbitrap Thermo Scientific AC$INSTRUMENT_TYPE: LC-ESI-QFT AC$MASS_SPECTROMETRY: MS_TYPE MS2 AC$MASS_SPECTROMETRY: ION_MODE POSITIVE AC$MASS_SPECTROMETRY: IONIZATION ESI AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE HCD AC$MASS_SPECTROMETRY: COLLISION_ENERGY 15 (nominal) AC$MASS_SPECTROMETRY: RESOLUTION 35000 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 4.3 min AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid
MS$FOCUSED_ION: BASE_PEAK 362.1511 MS$FOCUSED_ION: PRECURSOR_M/Z 362.1511 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$DATA_PROCESSING: WHOLE RMassBank 1.9.6
PK$SPLASH: splash10-03di-0009000000-63138044688fa3ab0792 PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm) 261.1033 C14H14FN2O2+ 2 261.1034 -0.12 318.161 C17H21FN3O2+ 1 318.1612 -0.79 344.1397 C18H19FN3O3+ 1 344.1405 -2.23 362.1507 C18H21FN3O4+ 1 362.1511 -0.89 PK$NUM_PEAK: 4 PK$PEAK: m/z int. rel.int. 261.1033 1836171.8 5 318.161 36621557.7 104 344.1397 380661 1 362.1507 349408054.8 999 //