ACCESSION: MSBNK-Eawag-EQ331253
RECORD_TITLE: Gabapentin Related Compound E; LC-ESI-QFT; MS2; CE: 45; R=35000; [M-H]-
DATE: 2015.08.26
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 3312

CH$NAME: Gabapentin Related Compound E
CH$NAME: 1-(carboxymethyl)cyclohexanecarboxylic acid
CH$NAME: 1-(carboxymethyl)cyclohexane-1-carboxylic acid
CH$COMPOUND_CLASS: N/A; Environmental Standard
CH$FORMULA: C₉H₁₄O₄
CH$EXACT_MASS: 186.08921
CH$SMILES: C1CC[C@@](CC1)(C(=O)O)CC(=O)O
CH$IUPAC: InChI=1S/C9H14O4/c10-7(11)6-9(8(12)13)4-2-1-3-5-9/h1-6H2,(H,10,11)(H,12,13)
CH$LINK: CAS 67950-95-2
CH$LINK: PUBCHEM CID:260003
CH$LINK: INCHIKEY SDAXMMUAZRUWNL-UHFFFAOYSA-N
CH$LINK: CHEMSPIDER 228197
CH$LINK: COMPTOX DTXSID50218158

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$MASS_SPECTROMETRY: COLLISION_ENERGY 45 (nominal)
AC$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 6.9 min
AC$CHROMATOGRAPHY: SOLVENT A water with 0.1% formic acid
AC$CHROMATOGRAPHY: SOLVENT B methanol with 0.1% formic acid

MS$FOCUSED_ION: BASE_PEAK 185.0817
MS$FOCUSED_ION: PRECURSOR_M/Z 185.0819
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$SPLASH: splash10-0006-0900000000-4167087c3455a44d3845
PK$ANNOTATION: m/z tentative_formula formula_count mass error(ppm)
  141.0922 C8H13O2- 1 141.0921 0.69
  167.0714 C9H11O3- 1 167.0714 0.31
  185.0821 C9H13O4- 1 185.0819 0.63
PK$NUM_PEAK: 3
PK$PEAK: m/z int. rel.int.
  141.0922 265214528 999
  167.0714 5787638.5 21
  185.0821 84351096 317
//