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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
9,10-EpoxyoctadecanoateGenerator
(9R,10S)-9,10-Epoxy-18-hydroxyoctadecanoateHMDB
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
9R,10S-Epoxy-18-hydroxystearateHMDB
Omega-hydroxy-9,10-epoxystearic acidHMDB
Ω-hydroxy-9,10-epoxystearic acidHMDB
9,10-Epoxyoctadecanoic 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
Not AvailableNot 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 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, 2022.8.97 minutes32390414
Predicted by Siyang on May 30, 202216.5893 minutes33406817
Predicted by Siyang using ReTip algorithm on June 8, 20221.58 minutes32390414
Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid2785.6 seconds40023050
Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid333.3 seconds40023050
Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid201.4 seconds40023050
Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid176.5 seconds40023050
RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid521.2 seconds40023050
Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid760.2 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 Acid608.5 seconds40023050
HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate)161.6 seconds40023050
UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid1585.5 seconds40023050
BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid509.1 seconds40023050
UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid1632.4 seconds40023050
SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid575.3 seconds40023050
RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid408.3 seconds40023050
MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate466.5 seconds40023050
KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA349.1 seconds40023050
Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water30.5 seconds40023050

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
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 IDFDB112402
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.