ACCESSION: MSBNK-Eawag-EQ01163851
RECORD_TITLE: Nimesulide; LC-ESI-QFT; MS2; CE: 15%; R=17500; [M-H]-
DATE: 2024.01.16
AUTHORS: B. Beck [dtc,com], J. Hollender [dtc]
LICENSE: CC BY-SA
COPYRIGHT: Copyright (C) Eawag 2023
COMMENT: CONFIDENCE standard compound
COMMENT: UCHEM_ID 11638

CH$NAME: Nimesulide
CH$NAME: N-(4-nitro-2-phenoxyphenyl)methanesulfonamide
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₁₃H₁₂N₂O₅S
CH$EXACT_MASS: 308.046692484
CH$SMILES: CS(=O)(=O)NC1=C(C=C(C=C1)[N+](=O)[O-])OC2=CC=CC=C2
CH$IUPAC: InChI=1S/C13H12N2O5S/c1-21(18,19)14-12-8-7-10(15(16)17)9-13(12)20-11-5-3-2-4-6-11/h2-9,14H,1H3
CH$LINK: CHEBI 44445
CH$LINK: PUBCHEM CID:4495
CH$LINK: INCHIKEY HYWYRSMBCFDLJT-UHFFFAOYSA-N
CH$LINK: CHEMSPIDER 4339

AC$INSTRUMENT: Exploris 240 Orbitrap Thermo Scientific
AC$INSTRUMENT_TYPE: LC-ESI-QFT
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE HCD
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 15 % (nominal)
AC$MASS_SPECTROMETRY: RESOLUTION 17500
AC$MASS_SPECTROMETRY: MASS_RANGE_M/Z 50-334
AC$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 7.689 min

MS$FOCUSED_ION: BASE_PEAK 307.0393
MS$FOCUSED_ION: PRECURSOR_M/Z 307.0394
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 3.11.2

PK$SPLASH: splash10-0a4i-0039000000-176dd93cca4c6b4bc53d
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  78.9858 CH3O2S- 1 78.9859 -0.98
  228.0538 C12H8N2O3- 1 228.054 -1.25
  229.0618 C12H9N2O3- 1 229.0619 -0.24
  261.0471 C13H11NO3S- 1 261.0465 2.26
  307.0395 C13H11N2O5S- 1 307.0394 0.37
PK$NUM_PEAK: 5
PK$PEAK: m/z int. rel.int.
  78.9858 1519599 11
  228.0538 3630980.5 26
  229.0618 46135040 337
  261.0471 362772.2 2
  307.0395 136492976 999
//