ACCESSION: MSBNK-MSSJ-MSJ00188
RECORD_TITLE: 1-(9Z-Octadecenoyl)-sn-glycero-3-phosphocholine; MALDI-QITTOF; MS3; POSITIVE; [M+H+O]+; Low-energy CID
DATE: 2020.02.24
AUTHORS: Hidenori Takahashi, Mass Spectrometry Research Laboratory, Shimadzu Corporation, 1 Nishinokyo-Kuwabaracho Nakagyo-ku, Kyoto, 604-8511, Japan.
LICENSE: CC BY
COPYRIGHT: Hidenori Takahashi, Mass Spectrometry Research Laboratory, Shimadzu Corporation, 1 Nishinokyo-Kuwabaracho Nakagyo-ku, Kyoto, 604-8511, Japan.
PUBLICATION: Hidenori Takahashi, Yuji Shimabukuro, Daiki Asakawa, Shosei Yamauchi, Sadanori Sekiya, Shinichi Iwamoto, Motoi Wada, Koichi Tanaka, "Structural Analysis of Phospholipid Using Hydrogen Abstraction Dissociation and Oxygen Attachment Dissociation in Tandem Mass Spectrometry", Anal. Chem., 90 (12), 7230-7238 (2018). DOI:10.1021/acs.analchem.8b00322.
COMMENT: MSJ00188 is shown in Figure 5 of the publication. The precursor ion is the [M+H+O]+ ion that is a major product ion of the reaction product of [M+H]+ with H2O microwave discharge (MSJ00187). In the present experiment, [M+H+O]+ ions are induced by the injection of 3O (triplet) from the microwave discharge of pure O2 gas.
COMMENT: Figure 5 shows that O attached precursor ions, [M+H+O]+, are predominantly in the epoxide form.
COMMENT: The instrument consists of QIT-TOF where Q selects [M+H]+ ion, IT is an ion trap chamber for the reaction of HAD, and TOF analyzes the product ions.
COMMENT: MS data of the substance is MSJ00178; Figure 1(A) Inset in the publication.
COMMENT: The sample was injected by direct infusion of methanol solution.
COMMENT: This record was created by the financial support of MEXT/JSPS KAKENHI Grant Number 19HP8024 to the Mass Spectrometry Society of Japan.
COMMENT: The lipid standard was purchased from Avanti Polar Lipids (Alabaster, AL).

CH$NAME: Lyso-PC 18:1(9Z)
CH$NAME: 1-(9Z-Octadecenoyl)-sn-glycero-3-phosphocholine
CH$COMPOUND_CLASS: Natural product; Phospholipid
CH$FORMULA: C₂₆H₅₂NO₇P
CH$EXACT_MASS: 521.3481
CH$SMILES: CCCCCCCC/C=C\CCCCCCCC(=O)OC[C@H](COP(=O)([O-])OCC[N+](C)(C)C)O
CH$IUPAC: InChI=1S/C26H52NO7P/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-26(29)32-23-25(28)24-34-35(30,31)33-22-21-27(2,3)4/h12-13,25,28H,5-11,14-24H2,1-4H3/b13-12-/t25-/m1/s1
CH$LINK: CHEMSPIDER 4033747
CH$LINK: INCHIKEY YAMUFBLWGFFICM-PTGWMXDISA-N
CH$LINK: PUBCHEM CID:16081932

AC$INSTRUMENT: MALDI-QITTOF noncommercial prototype model (Shimadzu Corporation, Kyoto, Japan)
AC$INSTRUMENT_TYPE: MALDI-QITTOF
AC$MASS_SPECTROMETRY: MS_TYPE MS3
AC$MASS_SPECTROMETRY: ION_MODE POSITIVE
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE CID
AC$MASS_SPECTROMETRY: IONIZATION MALDI
AC$MASS_SPECTROMETRY: MATRIX 2,5-Dihydroxybenzoic acid
AC$MASS_SPECTROMETRY: REAGENT_GAS Ar

MS$FOCUSED_ION: PRECURSOR_M/Z 538.3503
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H+O]+

PK$SPLASH: splash10-001i-0900000000-63318e7991daf258cfca
PK$NUM_PEAK: 7
PK$PEAK: m/z int. rel.int.
  184.073 100 999
  344.488 3.58 36
  351.287 3.816 38
  359.056 1.047 10
  388.226 1.959 20
  425.27 1.587 16
  453.708 1.081 11
//