ACCESSION: MSBNK-MSSJ-MSJ00771
RECORD_TITLE: Malic acid; GC-EI-QQ; MS2; POSITIVE; CID 5 V; 3 TBDMS-derivative; [M-159]+
DATE: 2021.10.13
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: Annotation of fragment ions (PK$ANNOTATION) is based on Supplemental material page 28 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$NAME: Malic acid
CH$COMPOUND_CLASS: Natural product; succinic acid
CH$FORMULA: C₄H₆O₅
CH$EXACT_MASS: 134.02153
CH$SMILES: C(C(C(=O)O)O)C(=O)O
CH$IUPAC: InChI=1S/C4H6O5/c5-2(4(8)9)1-3(6)7/h2,5H,1H2,(H,6,7)(H,8,9)
CH$LINK: CAS 6915-15-7
CH$LINK: CHEBI 6650
CH$LINK: CHEMSPIDER 510
CH$LINK: INCHIKEY BJEPYKJPYRNKOW-UHFFFAOYSA-N
CH$LINK: PUBCHEM CID:525

AC$INSTRUMENT: GCMS-TQ8040 (Shimadzu, Kyoto, Japan)
AC$INSTRUMENT_TYPE: GC-EI-QQ
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE POSITIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 5 V
AC$MASS_SPECTROMETRY: COLLISION_GAS Ar (200 kPa)
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE CID
AC$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$FOCUSED_ION: DERIVATIVE_FORM C22H48O5Si3
MS$FOCUSED_ION: DERIVATIVE_MASS 476.28095
MS$FOCUSED_ION: DERIVATIVE_TYPE 3 TBDMS
MS$FOCUSED_ION: PRECURSOR_M/Z 317.19628

PK$SPLASH: splash10-014i-1912000000-7d635b035b11f61b53b1
PK$ANNOTATION: m/z formula exact_mass error(ppm)
  317.35 C15H33O3Si2+ 317.19628 485
PK$NUM_PEAK: 7
PK$PEAK: m/z int. rel.int.
  73.1 2721 176
  115.1 15444 999
  185.1 892 57
  273.35 1425 92
  274.3 167 10
  275.3 326 21
  317.35 4135 267
//