ACCESSION: MSBNK-Eawag-EQ360901
RECORD_TITLE: Oxolinic acid; LC-ESI-QFT; MS2; CE: 15; R=35000; [M+H]+
DATE: 2015.08.25
AUTHORS: Stravs M, Schymanski E, Singer H, Department of Environmental Chemistry, Eawag and Thomaidis N, University of Athens
LICENSE: CC BY
COPYRIGHT: Copyright (C) 2015 Eawag, Duebendorf, Switzerland
COMMENT: CONFIDENCE standard compound
COMMENT: EAWAG_UCHEM_ID 3609

CH$NAME: Oxolinic acid
CH$NAME: 5-ethyl-8-oxo-[1,3]dioxolo[4,5-g]quinoline-7-carboxylic acid
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₁₃H₁₁NO₅
CH$EXACT_MASS: 261.06372
CH$SMILES: CCN1C=C(C(=O)C2=CC3=C(C=C21)OCO3)C(=O)O
CH$IUPAC: InChI=1S/C13H11NO5/c1-2-14-5-8(13(16)17)12(15)7-3-10-11(4-9(7)14)19-6-18-10/h3-5H,2,6H2,1H3,(H,16,17)
CH$LINK: CAS 14698-29-4
CH$LINK: CHEBI 138856
CH$LINK: KEGG C11342
CH$LINK: PUBCHEM CID:4628
CH$LINK: INCHIKEY KYGZCKSPAKDVKC-UHFFFAOYSA-N
CH$LINK: CHEMSPIDER 4467
CH$LINK: COMPTOX DTXSID1021089

AC$INSTRUMENT: Q Exactive Plus Orbitrap Thermo Scientific
AC$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 0.9 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid

MS$FOCUSED_ION: BASE_PEAK 262.0705
MS$FOCUSED_ION: PRECURSOR_M/Z 262.071
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+
MS$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$SPLASH: splash10-03di-0090000000-24298432855bfc523660
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  244.0604 C13H10NO4+ 1 244.0604 -0.02
  262.0709 C13H12NO5+ 1 262.071 -0.34
PK$NUM_PEAK: 2
PK$PEAK: m/z int. rel.int.
  244.0604 4810490 178
  262.0709 26910634 999
//