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Record Information
Version5.0
StatusDetected but not Quantified
Creation Date2021-09-11 00:28:15 UTC
Update Date2021-09-26 22:57:11 UTC
HMDB IDHMDB0247466
Secondary Accession NumbersNone
Metabolite Identification
Common Name8,12-Octadecadienoic acid
Description8,12-Octadecadienoic acid belongs to the class of organic compounds known as lineolic acids and derivatives. These are derivatives of lineolic acid. Lineolic acid is a polyunsaturated omega-6 18 carbon long fatty acid, with two CC double bonds at the 9- and 12-positions. Based on a literature review very few articles have been published on 8,12-Octadecadienoic acid. This compound has been identified in human blood as reported by (PMID: 31557052 ). 8,12-octadecadienoic acid is not a naturally occurring metabolite and is only found in those individuals exposed to this compound or its derivatives. Technically 8,12-Octadecadienoic acid is part of the human exposome. The exposome can be defined as the collection of all the exposures of an individual in a lifetime and how those exposures relate to health. An individual's exposure begins before birth and includes insults from environmental and occupational sources.
Structure
Thumb
Synonyms
ValueSource
8,12-OctadecadienoateGenerator
Chemical FormulaC18H32O2
Average Molecular Weight280.452
Monoisotopic Molecular Weight280.24023027
IUPAC Nameoctadeca-8,12-dienoic acid
Traditional Nameoctadeca-8,12-dienoic acid
CAS Registry NumberNot Available
SMILES
CCCCCC=CCCC=CCCCCCCC(O)=O
InChI Identifier
InChI=1S/C18H32O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h6-7,10-11H,2-5,8-9,12-17H2,1H3,(H,19,20)
InChI KeyFVIFMUSFIUXENC-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as lineolic acids and derivatives. These are derivatives of lineolic acid. Lineolic acid is a polyunsaturated omega-6 18 carbon long fatty acid, with two CC double bonds at the 9- and 12-positions.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassLineolic acids and derivatives
Direct ParentLineolic acids and derivatives
Alternative Parents
Substituents
  • Octadecanoid
  • Long-chain fatty acid
  • Fatty acid
  • Unsaturated fatty acid
  • Straight chain fatty acid
  • 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 DescriptorsNot Available
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
logP7.04ALOGPS
logP6.42ChemAxon
logS-6.3ALOGPS
pKa (Strongest Acidic)4.89ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count14ChemAxon
Refractivity88.52 m³·mol⁻¹ChemAxon
Polarizability36.74 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]+174.80830932474
DeepCCS[M-H]-170.78830932474
DeepCCS[M-2H]-207.94630932474
DeepCCS[M+Na]+183.85730932474

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
8,12-Octadecadienoic acidCCCCCC=CCCC=CCCCCCCC(O)=O3183.5Standard polar33892256
8,12-Octadecadienoic acidCCCCCC=CCCC=CCCCCCCC(O)=O2092.4Standard non polar33892256
8,12-Octadecadienoic acidCCCCCC=CCCC=CCCCCCCC(O)=O2141.4Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 8,12-Octadecadienoic acid GC-MS (Non-derivatized) - 70eV, Positivesplash10-07bf-8930000000-e9443a5f1e2ebd49eda12021-09-23Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 8,12-Octadecadienoic acid GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 8,12-Octadecadienoic acid GC-MS (TMS_1_1) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 8,12-Octadecadienoic acid GC-MS (TBDMS_1_1) - 70eV, PositiveNot Available2021-11-03Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 8,12-Octadecadienoic acid 10V, Positive-QTOFsplash10-01q9-4490000000-473d549ae397b88b73302021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 8,12-Octadecadienoic acid 20V, Positive-QTOFsplash10-05nb-9510000000-fbef270b5137453d95ee2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 8,12-Octadecadienoic acid 40V, Positive-QTOFsplash10-0apl-9000000000-ec939f5c1e9a32bd780f2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 8,12-Octadecadienoic acid 10V, Negative-QTOFsplash10-004i-0090000000-03fd7d53d39127d027662021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 8,12-Octadecadienoic acid 20V, Negative-QTOFsplash10-01t9-1090000000-049ebf7bae228dd70d7b2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 8,12-Octadecadienoic acid 40V, Negative-QTOFsplash10-0006-9220000000-43ecd74174cdf6fa5e972021-10-12Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen Locations
  • Blood
Tissue LocationsNot Available
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodDetected but not QuantifiedNot QuantifiedNot SpecifiedNot SpecifiedNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID21231940
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound122193
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. Barupal DK, Fiehn O: Generating the Blood Exposome Database Using a Comprehensive Text Mining and Database Fusion Approach. Environ Health Perspect. 2019 Sep;127(9):97008. doi: 10.1289/EHP4713. Epub 2019 Sep 26. [PubMed:31557052 ]