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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2014-04-11 22:16:49 UTC
Update Date2021-09-14 14:57:35 UTC
HMDB IDHMDB0061650
Secondary Accession Numbers
  • HMDB61650
Metabolite Identification
Common Name9,10-Epoxyoctadecanoic acid
Description9,10-Epoxyoctadecanoic acid (CAS: 3233-92-9), also known as 9,10-epoxystearate, belongs to the class of organic compounds known as linoleic acids and derivatives. These are derivatives of linoleic acid. Linoleic acid is a polyunsaturated omega-6 18 carbon long fatty acid, with two CC double bonds at the 9- and 12-positions. 9,10-Epoxyoctadecanoic acid is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. 9,10-Epoxyoctadecanoic acid is an epoxy fatty acid. Epoxy fatty acids bear an oxirane ring that shares a CC-bond with the aliphatic chain. The cis-9,10-epoxyoctadecanoic acid has been found in liver microsomes and is believed to originate from CYP-catalyzed epoxidation of oleic acid.
Structure
Data?1583772247
Synonyms
ValueSource
(9R,10S)-18-Hydroxy-9,10-epoxystearic acidChEBI
18-Hydroxy-(9R,10S)-9,10-epoxystearic acidChEBI
18-Hydroxy-(9R,10S)-epoxy-octadecanoic acidChEBI
(9R,10S)-18-Hydroxy-9,10-epoxystearateGenerator
18-Hydroxy-(9R,10S)-9,10-epoxystearateGenerator
18-Hydroxy-(9R,10S)-epoxy-octadecanoateGenerator
(9R,10S)-9,10-Epoxy-18-hydroxyoctadecanoateGenerator
18-Hydroxy-9,10-epoxyoctadecanoic acidHMDB
18-Hydroxy-9,10-epoxystearic acidHMDB
3-(8-Hydroxyoctyl)-2-oxiraneoctanoic acidHMDB
9,10-Epoxy-18-hydroxyoctadecanoic acidHMDB
9,10-Epoxy-18-hydroxystearateHMDB
9,10-Epoxyoctadecanoic acidHMDB
9R,10S-Epoxy-18-hydroxystearateHMDB
omega-Hydroxy-9,10-epoxystearic acidHMDB
ω-Hydroxy-9,10-epoxystearic acidHMDB
Chemical FormulaC18H34O4
Average Molecular Weight314.466
Monoisotopic Molecular Weight314.245709575
IUPAC Name8-[(2R,3S)-3-(8-hydroxyoctyl)oxiran-2-yl]octanoic acid
Traditional Name8-[(2R,3S)-3-(8-hydroxyoctyl)oxiran-2-yl]octanoic acid
CAS Registry Number154966-80-0
SMILES
OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(O)=O
InChI Identifier
InChI=1S/C18H34O4/c19-15-11-7-2-1-4-8-12-16-17(22-16)13-9-5-3-6-10-14-18(20)21/h16-17,19H,1-15H2,(H,20,21)/t16-,17+/m0/s1
InChI KeyITTPZDMHCNGAGQ-DLBZAZTESA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as medium-chain fatty acids. These are fatty acids with an aliphatic tail that contains between 4 and 12 carbon atoms.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentMedium-chain fatty acids
Alternative Parents
Substituents
  • Medium-chain fatty acid
  • Epoxy fatty acid
  • Heterocyclic fatty acid
  • Hydroxy fatty acid
  • Carboxylic acid derivative
  • Carboxylic acid
  • Dialkyl ether
  • Oxirane
  • Ether
  • Monocarboxylic acid or derivatives
  • Oxacycle
  • Organoheterocyclic compound
  • Organic oxide
  • Hydrocarbon derivative
  • Carbonyl group
  • Organooxygen compound
  • Primary alcohol
  • Alcohol
  • Organic oxygen compound
  • Aliphatic heteromonocyclic compound
Molecular FrameworkAliphatic heteromonocyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
Source
ProcessNot Available
RoleNot Available
Physical Properties
StateNot Available
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 Solubility0.00041 g/LALOGPS
logP5.33ALOGPS
logP4.41ChemAxon
logS-4.7ALOGPS
pKa (Strongest Acidic)4.62ChemAxon
pKa (Strongest Basic)-2ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area70.06 ŲChemAxon
Rotatable Bond Count16ChemAxon
Refractivity87.74 m³·mol⁻¹ChemAxon
Polarizability39.18 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DeepCCS[M+H]+185.40630932474
DeepCCS[M-H]-183.04830932474
DeepCCS[M-2H]-215.93430932474
DeepCCS[M+Na]+191.49930932474
AllCCS[M+H]+185.332859911
AllCCS[M+H-H2O]+182.632859911
AllCCS[M+NH4]+187.932859911
AllCCS[M+Na]+188.632859911
AllCCS[M-H]-183.532859911
AllCCS[M+Na-2H]-184.432859911
AllCCS[M+HCOO]-185.632859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
9,10-Epoxyoctadecanoic acidOCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(O)=O3741.0Standard polar33892256
9,10-Epoxyoctadecanoic acidOCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(O)=O2444.0Standard non polar33892256
9,10-Epoxyoctadecanoic acidOCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(O)=O2543.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
9,10-Epoxyoctadecanoic acid,1TMS,isomer #1C[Si](C)(C)OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(=O)O2641.1Semi standard non polar33892256
9,10-Epoxyoctadecanoic acid,1TMS,isomer #2C[Si](C)(C)OC(=O)CCCCCCC[C@H]1O[C@H]1CCCCCCCCO2589.4Semi standard non polar33892256
9,10-Epoxyoctadecanoic acid,2TMS,isomer #1C[Si](C)(C)OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(=O)O[Si](C)(C)C2683.0Semi standard non polar33892256
9,10-Epoxyoctadecanoic acid,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(=O)O2900.7Semi standard non polar33892256
9,10-Epoxyoctadecanoic acid,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC(=O)CCCCCCC[C@H]1O[C@H]1CCCCCCCCO2854.9Semi standard non polar33892256
9,10-Epoxyoctadecanoic acid,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OCCCCCCCC[C@@H]1O[C@@H]1CCCCCCCC(=O)O[Si](C)(C)C(C)(C)C3193.7Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 9,10-Epoxyoctadecanoic acid GC-MS (1 TMS) - 70eV, PositiveNot Available2020-06-30Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 9,10-Epoxyoctadecanoic acid GC-MS (1 TMS) - 70eV, PositiveNot Available2020-06-30Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 9,10-Epoxyoctadecanoic acid GC-MS (2 TMS) - 70eV, PositiveNot Available2020-06-30Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 9,10-Epoxyoctadecanoic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 10V, Positive-QTOFNot Available2020-06-30Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 20V, Positive-QTOFNot Available2020-06-30Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 40V, Positive-QTOFNot Available2020-06-30Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 10V, Negative-QTOFNot Available2020-06-30Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 20V, Negative-QTOFNot Available2020-06-30Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 40V, Negative-QTOFNot Available2020-06-30Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 10V, Negative-QTOFsplash10-03di-0029000000-c9984dbae9e0dc9dc39d2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 20V, Negative-QTOFsplash10-03di-1169000000-47e7f6fa97d4b5b972c22021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 40V, Negative-QTOFsplash10-03fu-6795000000-287ce7e76cbebaa25efd2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 10V, Positive-QTOFsplash10-002b-1191000000-0c89eebc496d9082fe212021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 20V, Positive-QTOFsplash10-00os-8892000000-5898ae59b9d69139cfa72021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9,10-Epoxyoctadecanoic acid 40V, Positive-QTOFsplash10-0aos-9400000000-c266cb2d66410ceb45b72021-09-23Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB001865
KNApSAcK IDC00034432
Chemspider ID17220728
KEGG Compound IDC19620
BioCyc ID910-EPOXY-18-HYDROXYSTEARATE
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound16061045
PDB IDNot Available
ChEBI ID138258
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. Tsikas D, Sawa M, Brunner G, Gutzki FM, Meyer HH, Frolich JC: Gas chromatography-mass spectrometry of cis-9,10-epoxyoctadecanoic acid (cis-EODA). I. Direct evidence for cis-EODA formation from oleic acid oxidation by liver microsomes and isolated hepatocytes. J Chromatogr B Analyt Technol Biomed Life Sci. 2003 Feb 5;784(2):351-65. [PubMed:12505783 ]
  2. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  3. Watson AD: Thematic review series: systems biology approaches to metabolic and cardiovascular disorders. Lipidomics: a global approach to lipid analysis in biological systems. J Lipid Res. 2006 Oct;47(10):2101-11. Epub 2006 Aug 10. [PubMed:16902246 ]
  4. Sethi JK, Vidal-Puig AJ: Thematic review series: adipocyte biology. Adipose tissue function and plasticity orchestrate nutritional adaptation. J Lipid Res. 2007 Jun;48(6):1253-62. Epub 2007 Mar 20. [PubMed:17374880 ]
  5. Lingwood D, Simons K: Lipid rafts as a membrane-organizing principle. Science. 2010 Jan 1;327(5961):46-50. doi: 10.1126/science.1174621. [PubMed:20044567 ]
  6. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.