ACCESSION: MSBNK-MSSJ-MSJ00757
RECORD_TITLE: alpha-Ketoglutaric acid-[1,2,3,4,5-13C5]; GC-EI-QQ; MS2; positive; CID 10 V; MEOX,2TBDMS-derivative; [M-57]+
DATE: 2021.10.04
AUTHORS: Nobuyuki Okahashi and Fumio Matsuda, Osaka University
LICENSE: CC BY
COPYRIGHT: Nobuyuki Okahashi and Fumio Matsuda, Osaka University
PUBLICATION: Nobuyuki Okahashi et al. Mass Spectrometry 2019 vol. 8, A0073.
COMMENT: The sample analyzed is labeled with 13C at the carbon atom 1,2,3,4,5.
COMMENT: Annotation of fragment ions (PK$ANNOTATION) is based on Table 1 and Supplemental material page 23 of the publication.
COMMENT: This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 21HP8020 to the Mass Spectrometry Society of Japan.

CH$NAME: alpha-Ketoglutaric acid-[1,2,3,4,5-13C5]
CH$COMPOUND_CLASS: In vitro synthetic compound
CH$FORMULA: C₅H₆O₅
CH$EXACT_MASS: 146.02152
CH$SMILES: OC(=O)C(=O)CCC(=O)O
CH$IUPAC: InChI=1S/C5H6O5/c6-3(5(9)10)1-2-4(7)8/h1-2H2,(H,7,8)(H,9,10)/i1+1,2+1,3+1,4+1,5+1
CH$LINK: CHEMSPIDER 71078928
CH$LINK: INCHIKEY KPGXRSRHYNQIFN-CVMUNTFWSA-N
CH$LINK: PUBCHEM CID:131801545

AC$INSTRUMENT: GCMS-QP2010 Ultra (Shimadzu, Kyoto, Japan)
AC$INSTRUMENT_TYPE: GC-EI-QQ
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE POSITIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 10 V
AC$MASS_SPECTROMETRY: COLLISION_GAS Ar (200 kPa)
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE CID
AC$MASS_SPECTROMETRY: HELIUM_FLOW 1 ml/min
AC$MASS_SPECTROMETRY: ION_SOURCE_TEMPERATURE 200 C
AC$MASS_SPECTROMETRY: SCAN_RANGE_M/Z 50-600
AC$CHROMATOGRAPHY: COLUMN_NAME DB-5MS+DG (Agilent Technologies, Santa Clara, CA, USA)
AC$CHROMATOGRAPHY: INJECTION_TEMPERATURE 250 C
AC$CHROMATOGRAPHY: OVEN_TEMPERATURE 70 C (Duration 2 min)-280 C (rate:10 C/min; Duration 3 min)
AC$CHROMATOGRAPHY: TRANSFARLINE_TEMPERATURE 250 C

MS$FOCUSED_ION: DERIVATIVE_FORM C18H37NO5Si2
MS$FOCUSED_ION: DERIVATIVE_MASS 403.22102
MS$FOCUSED_ION: DERIVATIVE_TYPE MEOX, 2TBDMS
MS$FOCUSED_ION: PRECURSOR_M/Z 351.16683

PK$SPLASH: splash10-01ot-2900000000-2103be9880d918f7c559
PK$ANNOTATION: m/z formula exact_mass error(ppm)
  160.05 C2(13C4)H10NO2Si+ 160.06095 68.4
  190.1 C3(13C4)H12NO3Si+ 190.07151 150
  351.1 C9(13C5)H28NO5Si2+ 351.16683 190
PK$NUM_PEAK: 14
PK$PEAK: m/z int. rel.int.
  58 144428 87
  73.1 863950 522
  75.1 99261 60
  89 22090 13
  115.1 216791 131
  147.1 1650727 999
  148.15 23523 14
  149.05 226933 137
  160.05 1008682 610
  189.15 84109 50
  190.1 262096 158
  232.15 19293 11
  263.05 191872 116
  351.1 361939 219
//