Hmdb loader
Record Information
Version5.0
StatusDetected and Quantified
Creation Date2009-07-25 00:03:56 UTC
Update Date2022-03-07 02:51:27 UTC
HMDB IDHMDB0012611
Secondary Accession Numbers
  • HMDB12611
Metabolite Identification
Common Name18R-HEPE
Description18R-HEPE belongs to the class of organic compounds known as hydroxyeicosapentaenoic acids. These are eicosanoic acids with an attached hydroxyl group and five CC double bonds. Thus, 18R-hepe is considered to be an eicosanoid. Based on a literature review a significant number of articles have been published on 18R-HEPE.
Structure
Data?1582753069
Synonyms
ValueSource
18(R)-Hydroxyeicosa-5Z,8Z,11E,14Z,16E-pentaenoateHMDB
18(R)-Hydroxyeicosa-5Z,8Z,11E,14Z,16E-pentaenoic acidHMDB
18-HEPEHMDB
Chemical FormulaC20H30O3
Average Molecular Weight318.4504
Monoisotopic Molecular Weight318.219494826
IUPAC Name(5Z,8Z,11E,14Z,16E,18S)-18-hydroxyicosa-5,8,11,14,16-pentaenoic acid
Traditional Name(5Z,8Z,11E,14Z,16E,18S)-18-hydroxyicosa-5,8,11,14,16-pentaenoic acid
CAS Registry NumberNot Available
SMILES
CC[C@H](O)\C=C\C=C/C\C=C\C\C=C/C\C=C/CCCC(O)=O
InChI Identifier
InChI=1S/C20H30O3/c1-2-19(21)17-15-13-11-9-7-5-3-4-6-8-10-12-14-16-18-20(22)23/h4-7,10-13,15,17,19,21H,2-3,8-9,14,16,18H2,1H3,(H,22,23)/b6-4-,7-5+,12-10-,13-11-,17-15+/t19-/m0/s1
InChI KeyLRWYBGFSVUBWMO-NQZHIPPKSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as hydroxyeicosapentaenoic acids. These are eicosanoic acids with an attached hydroxyl group and five CC double bonds.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassEicosanoids
Direct ParentHydroxyeicosapentaenoic acids
Alternative Parents
Substituents
  • Hydroxyeicosapentaenoic acid
  • Long-chain fatty acid
  • Hydroxy fatty acid
  • Fatty acid
  • Unsaturated fatty acid
  • Secondary alcohol
  • Carboxylic acid derivative
  • Carboxylic acid
  • Monocarboxylic acid or derivatives
  • Organic oxide
  • Organic oxygen compound
  • Alcohol
  • Hydrocarbon derivative
  • Carbonyl group
  • Organooxygen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
Process
Role
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 Solubility0.0025 g/LALOGPS
logP5.6ALOGPS
logP4.99ChemAxon
logS-5.1ALOGPS
pKa (Strongest Acidic)4.82ChemAxon
pKa (Strongest Basic)-1.7ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 ŲChemAxon
Rotatable Bond Count13ChemAxon
Refractivity102.59 m³·mol⁻¹ChemAxon
Polarizability37.12 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+189.12131661259
DarkChem[M-H]-188.56831661259
DeepCCS[M+H]+181.83230932474
DeepCCS[M-H]-179.47430932474
DeepCCS[M-2H]-212.52730932474
DeepCCS[M+Na]+187.92630932474
AllCCS[M+H]+185.432859911
AllCCS[M+H-H2O]+182.432859911
AllCCS[M+NH4]+188.232859911
AllCCS[M+Na]+189.032859911
AllCCS[M-H]-183.332859911
AllCCS[M+Na-2H]-184.932859911
AllCCS[M+HCOO]-186.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
18R-HEPECC[C@H](O)\C=C\C=C/C\C=C\C\C=C/C\C=C/CCCC(O)=O4336.4Standard polar33892256
18R-HEPECC[C@H](O)\C=C\C=C/C\C=C\C\C=C/C\C=C/CCCC(O)=O2355.5Standard non polar33892256
18R-HEPECC[C@H](O)\C=C\C=C/C\C=C\C\C=C/C\C=C/CCCC(O)=O2604.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
18R-HEPE,1TMS,isomer #1CC[C@@H](/C=C/C=C\C/C=C/C/C=C\C/C=C\CCCC(=O)O)O[Si](C)(C)C2791.9Semi standard non polar33892256
18R-HEPE,1TMS,isomer #2CC[C@H](O)/C=C/C=C\C/C=C/C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C2669.5Semi standard non polar33892256
18R-HEPE,2TMS,isomer #1CC[C@@H](/C=C/C=C\C/C=C/C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C)O[Si](C)(C)C2730.5Semi standard non polar33892256
18R-HEPE,1TBDMS,isomer #1CC[C@@H](/C=C/C=C\C/C=C/C/C=C\C/C=C\CCCC(=O)O)O[Si](C)(C)C(C)(C)C3037.0Semi standard non polar33892256
18R-HEPE,1TBDMS,isomer #2CC[C@H](O)/C=C/C=C\C/C=C/C/C=C\C/C=C\CCCC(=O)O[Si](C)(C)C(C)(C)C2916.0Semi standard non polar33892256
18R-HEPE,2TBDMS,isomer #1CC[C@@H](/C=C/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)C3214.1Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 18R-HEPE GC-MS (Non-derivatized) - 70eV, Positivesplash10-0f6x-6292000000-c29b1e1c0254e0327a182017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 18R-HEPE GC-MS (2 TMS) - 70eV, Positivesplash10-00g1-9224300000-24d4fa79f8cba47eee852017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 18R-HEPE 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 - 18R-HEPE 10V, Positive-QTOFsplash10-0udi-0059000000-37e8d5e0a2b3f027af2e2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 20V, Positive-QTOFsplash10-0pir-1292000000-fe985e0055513c0581a72017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 40V, Positive-QTOFsplash10-0lxt-8890000000-a06f4fa01c49a7c5847b2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 10V, Negative-QTOFsplash10-014i-0059000000-8facefa2fa633323c5772017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 20V, Negative-QTOFsplash10-00kb-1093000000-c454f7dea34532f16c592017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 40V, Negative-QTOFsplash10-0a4i-9030000000-272f1a04adc1325d8e6c2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 10V, Negative-QTOFsplash10-014i-0029000000-531111af99f25018756b2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 20V, Negative-QTOFsplash10-014j-3093000000-9551d964c3223c3a21792021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 40V, Negative-QTOFsplash10-0abc-9050000000-47c6adcbc453c43e090a2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 10V, Positive-QTOFsplash10-0uxr-2459000000-3a28ba5ee79c7198f37a2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 20V, Positive-QTOFsplash10-0fsr-1931000000-afb440f274a3d0f8474f2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 18R-HEPE 40V, Positive-QTOFsplash10-017l-9800000000-c3774ee66909620aad2f2021-09-23Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected and Quantified0.000138 +/- 0.000024 uMAdult (>18 years old)BothNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB029149
KNApSAcK IDNot Available
Chemspider ID30776641
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound53481496
PDB IDNot Available
ChEBI IDNot Available
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. Simons K, Toomre D: Lipid rafts and signal transduction. Nat Rev Mol Cell Biol. 2000 Oct;1(1):31-9. [PubMed:11413487 ]
  2. 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 ]
  3. 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 ]
  4. 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 ]
  5. Gunstone, Frank D., John L. Harwood, and Albert J. Dijkstra (2007). The lipid handbook with CD-ROM. CRC Press.