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Record Information
Version2.0
Created at2006-05-22 15:12:43 UTC
Updated at2025-02-11 15:42:27 UTC
NP-MRD IDNP0000040
Secondary Accession NumbersNone
Natural Product Identification
Common NameVaccenic acid
DescriptionVaccenic acid is a naturally occurring trans fatty acid. It is the predominant kind of trans-fatty acid found in human milk, in the fat of ruminants, and in dairy products such as milk, butter, and yogurt. Trans fat in human milk may depend on trans fat content in food. Its IUPAC name is (11E)-11-octadecenoic acid, and its lipid shorthand name is 18:1 Trans-11. The name was derived from the Latin vacca (cow). Vaccenic acid 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. Vaccenic acid is a very hydrophobic molecule, practically insoluble in water, and relatively neutral.
Structure
Thumb
Synonyms
Chemical FormulaC18H34O2
Average Mass282.4680 Da
Monoisotopic Mass282.25588 Da
IUPAC Name(11E)-octadec-11-enoic acid
Traditional Nametrans-vaccenic acid
CAS Registry Number693-72-1
SMILES
CCCCCC\C=C\CCCCCCCCCC(O)=O
InChI Identifier
InChI=1S/C18H34O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h7-8H,2-6,9-17H2,1H3,(H,19,20)/b8-7+
InChI KeyUWHZIFQPPBDJPM-BQYQJAHWSA-N
Experimental Spectra
Spectrum TypeDescriptionDepositor EmailDepositor OrganizationDepositorDeposition DateView
1D NMR1H NMR Spectrum (1D, 500 MHz, CDCl3, simulated)Varshavi.d262021-09-06View Spectrum
2D NMR[1H, 13C]-HSQC NMR Spectrum (2D, 600 MHz, CDCl3, experimental)Wishart LabWishart LabDavid Wishart2021-06-20View Spectrum
Predicted Spectra
Not Available
Chemical Shift Submissions
Spectrum TypeDescriptionDepositor EmailDepositor OrganizationDepositorDeposition DateView
1D NMR1H NMR Spectrum (1D, 500 MHz, CDCl3, simulated)v.dorna83@yahoo.comNot AvailableNot Available2021-08-15View Spectrum
Species
Species of Origin
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
Substituents
  • Long-chain 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 Descriptors
Physical Properties
StateLiquid
Experimental Properties
PropertyValueReference
Melting Point44 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.00012 g/LALOGPS
logP7.67ALOGPS
logP6.78ChemAxon
logS-6.4ALOGPS
pKa (Strongest Acidic)4.95ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count15ChemAxon
Refractivity87.4 m³·mol⁻¹ChemAxon
Polarizability37.62 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityNoChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDHMDB0003231
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB002952
KNApSAcK IDC00052543
Chemspider ID4444571
KEGG Compound IDC08367
BioCyc IDNot Available
BiGG ID2217962
Wikipedia LinkVaccenic acid
METLIN ID3407
PubChem Compound5281127
PDB IDNot Available
ChEBI ID28727
Good Scents IDNot Available
References
General References
  1. Lock AL, Corl BA, Barbano DM, Bauman DE, Ip C: The anticarcinogenic effect of trans-11 18:1 is dependent on its conversion to cis-9, trans-11 CLA by delta9-desaturase in rats. J Nutr. 2004 Oct;134(10):2698-704. doi: 10.1093/jn/134.10.2698. [PubMed:15465769 ]
  2. Reynolds CM, Loscher CE, Moloney AP, Roche HM: Cis-9, trans-11-conjugated linoleic acid but not its precursor trans-vaccenic acid attenuate inflammatory markers in the human colonic epithelial cell line Caco-2. Br J Nutr. 2008 Jul;100(1):13-7. doi: 10.1017/S0007114508894329. [PubMed:18275620 ]
  3. Bassett CM, Edel AL, Patenaude AF, McCullough RS, Blackwood DP, Chouinard PY, Paquin P, Lamarche B, Pierce GN: Dietary vaccenic acid has antiatherogenic effects in LDLr-/- mice. J Nutr. 2010 Jan;140(1):18-24. doi: 10.3945/jn.109.105163. Epub 2009 Nov 18. [PubMed:19923390 ]