Record Information
Version1.0
Creation date2010-04-08 22:06:05 UTC
Update date2019-11-26 02:59:48 UTC
Primary IDFDB004092
Secondary Accession NumbersNot Available
Chemical Information
FooDB Namebeta-Amyrin
DescriptionBeta-amyrin, also known as amyrin or (3beta)-olean-12-en-3-ol, is a member of the class of compounds known as triterpenoids. Triterpenoids are terpene molecules containing six isoprene units. Thus, beta-amyrin is considered to be an isoprenoid lipid molecule. Beta-amyrin is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). Beta-amyrin can be synthesized from oleanane. Beta-amyrin is also a parent compound for other transformation products, including but not limited to, erythrodiol, glycyrrhetaldehyde, and 24-hydroxy-beta-amyrin. Beta-amyrin can be found in a number of food items such as thistle, pepper (c. baccatum), wakame, and endive, which makes beta-amyrin a potential biomarker for the consumption of these food products. The amyrins are three closely related natural chemical compounds of the triterpene class. They are designated α-amyrin (ursane skeleton), β-amyrin (oleanane skeleton) and δ-amyrin. Each is a pentacyclic triterpenol with the chemical formula C30H50O. They are widely distributed in nature and have been isolated from a variety of plant sources such as epicuticular wax. In plant biosynthesis, α-amyrin is the precursor of ursolic acid and β-amyrin is the precursor of oleanolic acid. All three amyrins occur in the surface wax of tomato fruit. α-Amyrin is found in dandelion coffee .
CAS Number559-70-6
Structure
Thumb
Synonyms
Predicted Properties
PropertyValueSource
Water Solubility7.2e-05 g/LALOGPS
logP7.53ALOGPS
logP7.4ChemAxon
logS-6.8ALOGPS
pKa (Strongest Acidic)19.49ChemAxon
pKa (Strongest Basic)-0.84ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area20.23 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity131.91 m³·mol⁻¹ChemAxon
Polarizability53.86 ųChemAxon
Number of Rings5ChemAxon
BioavailabilityYesChemAxon
Rule of FiveNoChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC30H50O
IUPAC name(3S,4aR,6aR,6bS,8aR,12aR,14aR,14bR)-4,4,6a,6b,8a,11,11,14b-octamethyl-1,2,3,4,4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a,14,14a,14b-icosahydropicen-3-ol
InChI IdentifierInChI=1S/C30H50O/c1-25(2)15-16-27(5)17-18-29(7)20(21(27)19-25)9-10-23-28(6)13-12-24(31)26(3,4)22(28)11-14-30(23,29)8/h9,21-24,31H,10-19H2,1-8H3/t21-,22-,23+,24-,27+,28-,29+,30+/m0/s1
InChI KeyJFSHUTJDVKUMTJ-QHPUVITPSA-N
Isomeric SMILESCC1(C)CC[C@]2(C)CC[C@]3(C)C(=CC[C@@H]4[C@@]5(C)CC[C@H](O)C(C)(C)[C@@H]5CC[C@@]34C)[C@@H]2C1
Average Molecular Weight426.7174
Monoisotopic Molecular Weight426.386166222
Classification
Description Belongs to the class of organic compounds known as triterpenoids. These are terpene molecules containing six isoprene units.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassTriterpenoids
Direct ParentTriterpenoids
Alternative Parents
Substituents
  • Triterpenoid
  • Cyclic alcohol
  • Secondary alcohol
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Alcohol
  • Aliphatic homopolycyclic compound
Molecular FrameworkAliphatic homopolycyclic compounds
External Descriptors
Ontology
OntologyNo ontology term
Physico-Chemical Properties
Physico-Chemical Properties - Experimental
Spectra
Spectra
EI-MS/GC-MSNot Available
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0a6r-0010900000-ba7658250bf46d7eb5982016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a6r-1677900000-3786eb5b3042cc1ffa652016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0w2j-1779100000-01f35dc4ed9f513499b22016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-004i-0000900000-36d280fb50f37e8d4f652016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-004i-0000900000-65a47f003658adb277f82016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4l-1019500000-b5ca2bf136a77442f7e82016-08-03View Spectrum
NMRNot Available
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDC08616
Pubchem Compound ID73145
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDNot Available
EAFUS IDNot Available
Dr. Duke IDBETA-AMYRIN
BIGG IDNot Available
KNApSAcK IDC00003738
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
Processing...
Biological Effects and Interactions
Health Effects / Bioactivities
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Files
MSDSNot Available
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference— Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).
— Shinbo, Y., et al. 'KNApSAcK: a comprehensive species-metabolite relationship database.' Plant Metabolomics. Springer Berlin Heidelberg, 2006. 165-181.