ACCESSION: MSBNK-MSSJ-MSJ00047
RECORD_TITLE: Arachidonic acid; LC-ESI-QQ; MS2; Negative; [M-H]-
DATE: 2017.07.13 (Created 2017.01.05)
AUTHORS: Kie Kasuga, Takahiro Suga, Nariyasu Mano (Tohoku University, Tohoku University Hospital)
LICENSE: CC BY
COPYRIGHT: Kie Kasuga, Takahiro Suga, Nariyasu Mano (Tohoku University, Tohoku University Hospital)
COMMENT: Chemical was purchased from CAY 90010 (Lot. 0447254-11)
COMMENT: Diagnostic ions:303.1, 259.2, 205.2

CH$NAME: Arachidonic acid
CH$NAME: 5Z,8Z,11Z,14Z-Eicosatetraenoic acid
CH$COMPOUND_CLASS: Natural Product; Lipid
CH$FORMULA: C₂₀H₃₂O₂
CH$EXACT_MASS: 304.24023
CH$SMILES: CCCCC/C=C\C/C=C\C/C=C\C/C=C\CCCC(=O)O
CH$IUPAC: InChI=1S/C20H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(21)22/h6-7,9-10,12-13,15-16H,2-5,8,11,14,17-19H2,1H3,(H,21,22)/b7-6-,10-9-,13-12-,16-15-
CH$LINK: CAS 506-32-1
CH$LINK: CHEMSPIDER 392692
CH$LINK: COMPTOX DTXSID4040420
CH$LINK: HMDB HMDB01043
CH$LINK: INCHIKEY YZXBAPSDXZZRGB-DOFZRALJSA-N
CH$LINK: KEGG C00219
CH$LINK: KNAPSACK C00000388
CH$LINK: LIPIDBANK DFA0213
CH$LINK: LIPIDMAPS LMFA01030001
CH$LINK: PUBCHEM CID:444899

AC$INSTRUMENT: TSQ Vantage, Thermo Scientific coupled to Nexera, Shimadzu
AC$INSTRUMENT_TYPE: LC-ESI-QQ
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE NEGATIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 16 eV
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$CHROMATOGRAPHY: COLUMN_NAME Inertsil ODS-3, (C18, 2.1mm i.d. x 100mm, 2 microm) with Inertsil ODS-3 (3 mm i.d. x 10 mm, 5 microm)
AC$CHROMATOGRAPHY: FLOW_GRADIENT 0-7 min: 50% B, 7 -12 min: 50% to 100 % B, 12-17 min: 100% B, 17-20 min: 50% B
AC$CHROMATOGRAPHY: FLOW_RATE 0.2 ml/min
AC$CHROMATOGRAPHY: RETENTION_TIME 17.5 min
AC$CHROMATOGRAPHY: SOLVENT A Water/Acetic acid (100/0.1, v/v)
AC$CHROMATOGRAPHY: SOLVENT B Acetonitrile/Acetic acid (100/0.1, v/v)

MS$FOCUSED_ION: PRECURSOR_M/Z 303.133484
MS$FOCUSED_ION: PRECURSOR_TYPE [M-H]-

PK$SPLASH: splash10-0udi-0019000000-62c5db4550ce039594cf
PK$NUM_PEAK: 4
PK$PEAK: m/z int. rel.int.
  205.2 19250 27
  259.2 102204 144
  302.4 9043 13
  303.1 710689 999
//