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Record Information
StatusExpected but not Quantified
Creation Date2014-04-11 22:16:40 UTC
Update Date2019-07-23 07:16:55 UTC
Secondary Accession Numbers
  • HMDB61647
Metabolite Identification
Common Name3,​4-​Dimethyl-​5-​propyl-2-​furanundecanoic acid
Description3,​4-​dimethyl-​5-​propyl-2-​furanundecanoic acid is a furan fatty acid (F-acid). F-acids are heterocyclic fatty acids containing a central furan moiety with a carboxylalkyl chain (mostly 7, 9, 11, or 13 carbons) in the 2-position and an alkyl chain (mostly 3 or 5 carbons) in the 5-position. Despite being found in low concentrations in food lipids, they are excellent antixoxidants and radical scavengers. This allows them to play an important role in preventing lipid peroxidation and protecting polyunsaturated fatty acids. They are often incorporated into phospholipids and cholesterol esters of fish and other marine organisms. 3,​4-​dimethyl-​5-​propyl-2-​furanundecanoic acid, in particular, can be described by the shorthand notation 11D3. This refers to its 11-carbon carboxyalkyl moiety, the dimethyl substitutions in the 3- and 4-positions of its furan moiety, and its 3-carbon alkyl moiety.
F4 acidHMDB
11-(3,4-Dimethyl-5-propyl-2-furyl)undecanoic acidHMDB
12,15-Epoxy-13,14-dimethyl-12,14-octadecadienoic acidHMDB
12,15-Epoxy-13,14-dimethyloctadeca-12,14-dienoic acidHMDB
11-(3,4-Dimethyl-5-propylfuran-2-yl)undecanoic acidHMDB
3,​4-​dimethyl-​5-​propyl-2-​furanundecanoic acidSMPDB
Chemical FormulaC20H34O3
Average Molecular Weight322.4822
Monoisotopic Molecular Weight322.250794954
IUPAC Name11-(3,4-dimethyl-5-propylfuran-2-yl)undecanoic acid
Traditional Name11-(3,4-dimethyl-5-propylfuran-2-yl)undecanoic acid
CAS Registry Number57818-41-4
InChI Identifier
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
  • Long-chain fatty acid
  • Furanoid fatty acid
  • Heterocyclic fatty acid
  • Furan
  • Heteroaromatic compound
  • Organoheterocyclic compound
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Oxacycle
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Carbonyl group
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available

Route of exposure:


Biological location:


Naturally occurring process:


Biological role:

Physical Properties
StateNot Available
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility0.0028 g/LALOGPS
pKa (Strongest Acidic)4.95ChemAxon
pKa (Strongest Basic)-1.1ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area50.44 ŲChemAxon
Rotatable Bond Count13ChemAxon
Refractivity95.68 m³·mol⁻¹ChemAxon
Polarizability41.37 ųChemAxon
Number of Rings1ChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0006-4690000000-c042ca53abd22bd79555Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-004i-8893000000-731c059e1ead8c91ceb7Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a4i-0139000000-bd563a59cdc38b349100Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-06vr-1973000000-9f60e683b80ec37bcb7dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-001a-8950000000-2704fb4af21d56500458Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00di-0019000000-053f5037264cd75cf150Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0uk9-1359000000-865fb9a68d46cf6f5fffSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-8950000000-6cf2373329e7a6601583Spectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
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
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound13963866
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Spiteller G: Furan fatty acids: occurrence, synthesis, and reactions. Are furan fatty acids responsible for the cardioprotective effects of a fish diet? Lipids. 2005 Aug;40(8):755-71. [PubMed:16296395 ]
  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.
  7. The AOCS Lipid Library [Link]