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Record Information
Creation Date2006-05-22 14:17:50 UTC
Update Date2016-02-11 01:05:36 UTC
Secondary Accession NumbersNone
Metabolite Identification
Common NameOleanolic acid
DescriptionOleanolic acid is a pentacyclic triterpene, found in the non-glyceride fraction of olive pomace oil (Olive pomace oil, also known as "orujo" olive oil, is a blend of refined-pomace oil and virgin olive oil, fit for human consumption). Pentacyclic triterpenes are natural compounds which are widely distributed in plants. These natural products have been demonstrated to possess anti-inflammatory properties. Triterpenoids have been reported to possess antioxidant properties, since they prevent lipid peroxidation and suppress superoxide anion generation. The triterpenes have a history of medicinal use in many Asian countries. Oleanolic acid exhibits both pro- and anti-inflammatory properties depending on chemical structure and dose and may be useful in modulating the immune response; further studies are required to confirm the immunomodulatory behaviour of this triterpenoid, and characterise the mechanisms underlying the biphasic nature of some aspects of the inflammatory response. Oleanolic acid is a ubiquitous triterpenoid in plant kingdom, medicinal herbs, and is an integral part of the human diet. During the last decade over 700 research articles have been published on triterpenoids research, reflecting tremendous interest and progress in our understanding of these compounds. This included the isolation and purification of these tritepernoids from various plants and herbs, the chemical modifications to make more effective and water soluble derivatives, the pharmacological research on their beneficial effects, the toxicity studies, and the clinical use of these triterpenoids in various diseases including anticancer chemotherapies. (PMID: 17292619 , 15522132 , 15994040 ).
3beta-Hydroxyolean-12-en-28-Oic acidChEBI
Astrantiagenin CChEBI
Giganteumgenin CChEBI
Oleanic acidChEBI
Virgaureagenin bChEBI
3b-Hydroxyolean-12-en-28-Oic acidGenerator
3β-hydroxyolean-12-en-28-Oic acidGenerator
(3-beta)-3-Hydroxyolean-12-en-28-Oic acidHMDB
(3.beta.)-3-beta-hydroxy-olean-12-en-28-Oic acidHMDB
(3.beta.)-3-hydroxy-olean-12-en-28-Oic acidHMDB
(4AS,5S,6as,6BR,8R,8ar,10S,12ar,12BR,14BS)-10-hydroxy-2,2,6a,6b,9,9,12a-heptamethyl-1,3,4,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-octadecahydro-2H-picene-4a-carboxylic acidHMDB
3-beta-Hydroxyolean-12-en-28-Oic acidHMDB
3.beta.-hydroxy-olean-12-en-28-Oic acidHMDB
3beta-Hydroxy-olean-12-en-28-Oic acidHMDB
Chemical FormulaC30H48O3
Average Molecular Weight456.7003
Monoisotopic Molecular Weight456.360345402
IUPAC Name(4aS,6aS,6bR,8aR,10S,12aR,12bR,14bS)-10-hydroxy-2,2,6a,6b,9,9,12a-heptamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,12b,13,14b-icosahydropicene-4a-carboxylic acid
Traditional Nameoleanolic acid
CAS Registry Number508-02-1
InChI Identifier
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as oleanane triterpenoids. These are triterpenoids with a structure based on the oleanane skeleton, an 4,4,6a,8a,11,14b-heptamethyl-hexadecahydropicene derivative.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassTriterpenoids
Direct ParentOleanane triterpenoids
Alternative Parents
  • Oleanane triterpenoid
  • Cyclic alcohol
  • Secondary alcohol
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
StatusDetected and Quantified
  • Endogenous
  • Food
  • Cell signaling
  • Fuel and energy storage
  • Fuel or energy source
  • Membrane integrity/stability
  • Nutrients
  • Stabilizers
  • Surfactants and Emulsifiers
Cellular locations
  • Extracellular
  • Membrane
Physical Properties
Experimental Properties
Melting Point310 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
Water Solubility0.000817 mg/mLALOGPS
pKa (Strongest Acidic)4.74ChemAxon
pKa (Strongest Basic)-0.84ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 Å2ChemAxon
Rotatable Bond Count1ChemAxon
Refractivity133.62 m3·mol-1ChemAxon
Polarizability54.87 Å3ChemAxon
Number of Rings5ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-MS (2 TMS)splash10-0udi-2951000000-3ffcf6404c28c9072e6eView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-ITTOF (LCMS-IT-TOF) , Negativesplash10-0a4i-0000900002-a0a4b7ccad94baf5df67View in MoNA
1D NMR1H NMR SpectrumNot Available
2D NMR[1H,13C] 2D NMR SpectrumNot Available
Biological Properties
Cellular Locations
  • Extracellular
  • Membrane
Biofluid Locations
  • Blood
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BloodDetected and Quantified0.026 +/- 0.014 uMAdult (>18 years old)MaleNormal details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDFDB013034
KNApSAcK IDC00019064
Chemspider ID10062
KEGG Compound IDC17148
BioCyc IDCPD-8482
BiGG IDNot Available
Wikipedia LinkNot Available
NuGOwiki LinkHMDB02364
Metagene LinkHMDB02364
METLIN IDNot Available
PubChem Compound10494
PDB IDNot Available
ChEBI ID37659
Synthesis ReferenceCorey, E. J.; Lee, Jaemoon. Enantioselective total synthesis of oleanolic acid, erythrodiol, b-amyrin, and other pentacyclic triterpenes from a common intermediate. Journal of the American Chemical Society (1993), 115(19), 8873-4.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Marquez-Martin A, De La Puerta R, Fernandez-Arche A, Ruiz-Gutierrez V, Yaqoob P: Modulation of cytokine secretion by pentacyclic triterpenes from olive pomace oil in human mononuclear cells. Cytokine. 2006 Dec;36(5-6):211-7. Epub 2007 Feb 9. [17292619 ]
  2. Rodriguez-Rodriguez R, Herrera MD, Perona JS, Ruiz-Gutierrez V: Potential vasorelaxant effects of oleanolic acid and erythrodiol, two triterpenoids contained in 'orujo' olive oil, on rat aorta. Br J Nutr. 2004 Oct;92(4):635-42. [15522132 ]
  3. Liu J: Oleanolic acid and ursolic acid: research perspectives. J Ethnopharmacol. 2005 Aug 22;100(1-2):92-4. [15994040 ]