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Record Information
Version5.0
StatusDetected and Quantified
Creation Date2008-09-15 09:55:13 UTC
Update Date2020-02-26 21:33:18 UTC
HMDB IDHMDB0010217
Secondary Accession Numbers
  • HMDB10217
Metabolite Identification
Common Name5-KETE
Description5-KETE, also known as 5-keto-ete or 5-oxoete, belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms. Thus, 5-KETE is considered to be an eicosanoid. Based on a literature review a significant number of articles have been published on 5-KETE.
Structure
Data?1582752798
Synonyms
ValueSource
(6E,8Z,11Z,14Z)-5-Oxoicosa-6,8,11,14-tetraenoic acidChEBI
5-Keto-eteChEBI
5-Ketoeicosatetraenoic acidChEBI
5-oxo, 6t,8C,11C,14C-20:4ChEBI
5-oxo-6(e),8(Z),11(Z),14(Z)-Eicosatetraenoic acidChEBI
5-oxo-6E,8Z,11Z,14Z-Eicosatetraenoic acidChEBI
5-oxo-Icosa-6,8,11,14-tetraenoic acidChEBI
5-Oxoeicosatetraenoic acidChEBI
5-OxoETEChEBI
5-Oxoicosatetraenoic acidChEBI
Eicosa-5,8,12,14-tetraenoic acidChEBI
(6E,8Z,11Z,14Z)-5-Oxoicosa-6,8,11,14-tetraenoateGenerator
5-KetoeicosatetraenoateGenerator
5-oxo-6(e),8(Z),11(Z),14(Z)-EicosatetraenoateGenerator
5-oxo-6E,8Z,11Z,14Z-EicosatetraenoateGenerator
5-oxo-Icosa-6,8,11,14-tetraenoateGenerator
5-OxoeicosatetraenoateGenerator
5-OxoicosatetraenoateGenerator
Eicosa-5,8,12,14-tetraenoateGenerator
5-Keto-6,8,11,14-eicosatetraenoateHMDB
5-Keto-6,8,11,14-eicosatetraenoic acidHMDB
5-oxo-6,8,11,14-EicosatetraenoateHMDB
5-oxo-6,8,11,14-Eicosatetraenoic acidHMDB
5-oxo-EicosatetraenoateHMDB
5-oxo-Eicosatetraenoic acidHMDB
5-oxo-6,8,11,14-ETEHMDB
5-oxo-6,8,11,14-Eicosatetraenoic acid, e,Z,Z,Z isomerHMDB
Chemical FormulaC20H30O3
Average Molecular Weight318.4504
Monoisotopic Molecular Weight318.219494826
IUPAC Name(6E,8Z,11Z,14Z)-5-oxoicosa-6,8,11,14-tetraenoic acid
Traditional Name5-Oxo-ETE
CAS Registry Number126432-17-5
SMILES
CCCCC\C=C/C\C=C/C\C=C/C=C/C(=O)CCCC(O)=O
InChI Identifier
InChI=1S/C20H30O3/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-16-19(21)17-15-18-20(22)23/h6-7,9-10,12-14,16H,2-5,8,11,15,17-18H2,1H3,(H,22,23)/b7-6-,10-9-,13-12-,16-14+
InChI KeyMEASLHGILYBXFO-XTDASVJISA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as long-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 13 and 21 carbon atoms.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentLong-chain fatty acids
Alternative Parents
Substituents
  • Long-chain fatty acid
  • Unsaturated fatty acid
  • Alpha,beta-unsaturated ketone
  • Enone
  • Acryloyl-group
  • Ketone
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Process
Naturally occurring process
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.00062 g/LALOGPS
logP5.85ALOGPS
logP5.77ChemAxon
logS-5.7ALOGPS
pKa (Strongest Acidic)4.43ChemAxon
pKa (Strongest Basic)-4.6ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area54.37 ŲChemAxon
Rotatable Bond Count14ChemAxon
Refractivity100.57 m³·mol⁻¹ChemAxon
Polarizability37.25 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+191.28430932474
DeepCCS[M-H]-188.92630932474
DeepCCS[M-2H]-221.81230932474
DeepCCS[M+Na]+197.37730932474
AllCCS[M+H]+185.232859911
AllCCS[M+H-H2O]+182.332859911
AllCCS[M+NH4]+187.932859911
AllCCS[M+Na]+188.732859911
AllCCS[M-H]-184.932859911
AllCCS[M+Na-2H]-186.632859911
AllCCS[M+HCOO]-188.732859911

Predicted Retention Times

Underivatized

Chromatographic MethodRetention TimeReference
Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. Predicted by Afia on May 17, 2022.7.56 minutes32390414
Predicted by Siyang on May 30, 202222.975 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20220.71 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid3012.7 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid545.1 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid225.4 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid363.6 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid654.2 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid1061.3 seconds40023050
BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid618.2 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)93.5 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid2204.9 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid716.8 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1741.1 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid770.5 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid517.9 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate359.6 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA551.3 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water8.6 seconds40023050

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
5-KETECCCCC\C=C/C\C=C/C\C=C/C=C/C(=O)CCCC(O)=O4190.4Standard polar33892256
5-KETECCCCC\C=C/C\C=C/C\C=C/C=C/C(=O)CCCC(O)=O2348.1Standard non polar33892256
5-KETECCCCC\C=C/C\C=C/C\C=C/C=C/C(=O)CCCC(O)=O2642.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
5-KETE,1TMS,isomer #1CCCCC/C=C\C/C=C\C/C=C\C=C\C(=O)CCCC(=O)O[Si](C)(C)C2654.6Semi standard non polar33892256
5-KETE,1TMS,isomer #2CCCCC/C=C\C/C=C\C/C=C\C=C\C(=CCCC(=O)O)O[Si](C)(C)C2859.6Semi standard non polar33892256
5-KETE,2TMS,isomer #1CCCCC/C=C\C/C=C\C/C=C\C=C\C(=CCCC(=O)O[Si](C)(C)C)O[Si](C)(C)C2800.1Semi standard non polar33892256
5-KETE,2TMS,isomer #1CCCCC/C=C\C/C=C\C/C=C\C=C\C(=CCCC(=O)O[Si](C)(C)C)O[Si](C)(C)C2710.0Standard non polar33892256
5-KETE,2TMS,isomer #1CCCCC/C=C\C/C=C\C/C=C\C=C\C(=CCCC(=O)O[Si](C)(C)C)O[Si](C)(C)C2848.1Standard polar33892256
5-KETE,1TBDMS,isomer #1CCCCC/C=C\C/C=C\C/C=C\C=C\C(=O)CCCC(=O)O[Si](C)(C)C(C)(C)C2912.1Semi standard non polar33892256
5-KETE,1TBDMS,isomer #2CCCCC/C=C\C/C=C\C/C=C\C=C\C(=CCCC(=O)O)O[Si](C)(C)C(C)(C)C3102.9Semi standard non polar33892256
5-KETE,2TBDMS,isomer #1CCCCC/C=C\C/C=C\C/C=C\C=C\C(=CCCC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C3271.6Semi standard non polar33892256
5-KETE,2TBDMS,isomer #1CCCCC/C=C\C/C=C\C/C=C\C=C\C(=CCCC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C3098.3Standard non polar33892256
5-KETE,2TBDMS,isomer #1CCCCC/C=C\C/C=C\C/C=C\C=C\C(=CCCC(=O)O[Si](C)(C)C(C)(C)C)O[Si](C)(C)C(C)(C)C2931.7Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 5-KETE GC-MS (Non-derivatized) - 70eV, Positivesplash10-053u-6490000000-f7442bdfafe15fcbd8be2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 5-KETE GC-MS (1 TMS) - 70eV, Positivesplash10-00gr-9334000000-c55c3efafdce8f7f48c82017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 5-KETE GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 5-KETE GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - 5-KETE LC-ESI-QIT , negative-QTOFsplash10-014i-0019000000-cc3fc8fe0ef27f29f3fb2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 5-KETE LC-ESI-QIT , negative-QTOFsplash10-014i-0019000000-73c8527e54e3481ad1a32017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 5-KETE LC-ESI-QIT , negative-QTOFsplash10-014i-0039000000-0e2010fcd9ac17c6d0ee2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 5-KETE LC-ESI-QIT , negative-QTOFsplash10-014i-0189000000-5eba1c071b73ab1609062017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 5-KETE LC-ESI-QIT , negative-QTOFsplash10-0v4j-0193000000-5251b2d0521f18bf6cdc2017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 5-KETE LC-ESI-QIT , negative-QTOFsplash10-0udi-0192000000-69bb1f0b8710630e34982017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 5-KETE LC-ESI-QIT , negative-QTOFsplash10-0udi-0293000000-1ebf2792695803c02d992017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 5-KETE LC-ESI-QIT , negative-QTOFsplash10-0udi-0493000000-6710e8cf7a82b74bf8e92017-09-14HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 5-KETE LC-ESI-QIT , negative-QTOFsplash10-0ika-1890000000-3ca3507e7352ecaba4732017-09-14HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 10V, Positive-QTOFsplash10-0udi-0139000000-56d3e500a2215f16ddba2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 20V, Positive-QTOFsplash10-0ul9-7893000000-95b152324d0f205b491b2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 40V, Positive-QTOFsplash10-0006-7960000000-b0a8aa3380cadece0d372017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 10V, Negative-QTOFsplash10-014i-0049000000-8a20eefad5150c79b6502017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 20V, Negative-QTOFsplash10-00kb-1093000000-57fbe7ca052d52fe8cbb2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 40V, Negative-QTOFsplash10-052f-8190000000-ad8a838b30e7500809fa2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 10V, Positive-QTOFsplash10-0uxr-1629000000-b0fafb9cc5aaed98cdc52021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 20V, Positive-QTOFsplash10-0f89-5944000000-fd1af71047782189494e2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 40V, Positive-QTOFsplash10-00lu-9700000000-cde9bfbce3fdd2d8c1b02021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 10V, Negative-QTOFsplash10-014i-0009000000-ac8d7382f0841f88fc4e2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 20V, Negative-QTOFsplash10-014i-6297000000-81cdd06d01b88c7801f62021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-KETE 40V, Negative-QTOFsplash10-052f-9580000000-e2e6654123cbfb72d9022021-09-24Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Membrane (predicted from logP)
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.000136 +/- 0.000018 ) uMAdult (>18 years old)Not Specified
Normal
details
BloodDetected and Quantified0.000136 +/- 0.000018 uMAdult (>18 years old)Both
Normal
details
BloodDetected and Quantified0.000145 +/- 0.00012 uMAdult (>18 years old)Both
Normal
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB027371
KNApSAcK IDNot Available
Chemspider ID4446283
KEGG Compound IDC14732
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkKETE
METLIN IDNot Available
PubChem Compound5283159
PDB IDNot Available
ChEBI ID52449
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Patel P, Cossette C, Anumolu JR, Gravel S, Lesimple A, Mamer OA, Rokach J, Powell WS: Structural requirements for activation of the 5-oxo-6E,8Z, 11Z,14Z-eicosatetraenoic acid (5-oxo-ETE) receptor: identification of a mead acid metabolite with potent agonist activity. J Pharmacol Exp Ther. 2008 May;325(2):698-707. doi: 10.1124/jpet.107.134908. Epub 2008 Feb 21. [PubMed:18292294 ]