ACCESSION: MSBNK-Eawag-EQ366155
RECORD_TITLE: Ampicillin; LC-ESI-QFT; MS2; CE: 75; R=35000; [M-H]-
DATE: 2015.08.26
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 3661

CH$NAME: Ampicillin
CH$NAME: 2-amino-1-methyl-5-propylideneimidazol-4-one
CH$NAME: 6-[(2-azaniumyl-2-phenylacetyl)amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₁₆H₁₉N₃O₄S
CH$EXACT_MASS: 349.10963
CH$SMILES: CC1(C(N2C(S1)C(C2=O)NC(=O)C(C3=CC=CC=C3)N)C(=O)O)C
CH$IUPAC: InChI=1S/C16H19N3O4S/c1-16(2)11(15(22)23)19-13(21)10(14(19)24-16)18-12(20)9(17)8-6-4-3-5-7-8/h3-7,9-11,14H,17H2,1-2H3,(H,18,20)(H,22,23)
CH$LINK: CAS 69-53-4
CH$LINK: PUBCHEM CID:2174
CH$LINK: INCHIKEY AVKUERGKIZMTKX-UHFFFAOYSA-N
CH$LINK: CHEMSPIDER 2089

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 NEGATIVE
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE HCD
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 75 (nominal)
AC$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 4.7 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid

MS$FOCUSED_ION: BASE_PEAK 348.1025
MS$FOCUSED_ION: PRECURSOR_M/Z 348.1024
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$SPLASH: splash10-00di-9000000000-2ee3c54a4c5ccd47df0e
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  50.0036 C3N- 1 50.0036 0.15
  56.9806 C2HS- 1 56.9804 2.2
  58.9962 C2H3S- 1 58.9961 2.46
  63.9625 O2S- 1 63.9624 0.17
  71.9915 C2H2NS- 1 71.9913 2.59
  72.9994 C2H3NS- 1 72.9992 2.76
  74.0072 C2H4NS- 1 74.007 2.65
  83.9915 C3H2NS- 1 83.9913 1.39
  99.9864 C3H2NOS- 1 99.9863 1.42
  116.0508 C8H6N- 1 116.0506 2.22
  134.0607 C8H8NO- 2 134.0611 -2.96
  159.0563 C9H7N2O- 1 159.0564 -0.67
PK$NUM_PEAK: 12
PK$PEAK: m/z int. rel.int.
  50.0036 26585.1 13
  56.9806 2999.8 1
  58.9962 8865.8 4
  63.9625 2264.8 1
  71.9915 516031.7 260
  72.9994 144010.8 72
  74.0072 1977299.9 999
  83.9915 28267.3 14
  99.9864 104520.6 52
  116.0508 31105.8 15
  134.0607 2769.6 1
  159.0563 2535.5 1
//