Record Information
Version1.0
Creation date2011-03-17 23:27:52 UTC
Update date2019-11-26 03:20:48 UTC
Primary IDFDB021721
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name3-Oxo-alpha-ionol
Description3-oxo-alpha-ionol is a member of the class of compounds known as sesquiterpenoids. Sesquiterpenoids are terpenes with three consecutive isoprene units. 3-oxo-alpha-ionol is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa). 3-oxo-alpha-ionol is a spice tasting compound found in common grape, which makes 3-oxo-alpha-ionol a potential biomarker for the consumption of this food product. 3-oxo-alpha-ionol may be a unique S.cerevisiae (yeast) metabolite.
CAS Number34318-21-3
Structure
Thumb
Synonyms
SynonymSource
3-oxo-a-IonolGenerator
3-oxo-Α-ionolGenerator
(3S,7E,9R)-9-Hydroxy-4,7-megastigmadien-3-onemanual
3-Oxo-a-ionoldb_source
3-Oxo-alpha-ionolmanual
9-Hydroxy-4,7-megastigmadien-3-onedb_source
Predicted Properties
PropertyValueSource
Water Solubility0.71 g/LALOGPS
logP2.14ALOGPS
logP2.27ChemAxon
logS-2.5ALOGPS
pKa (Strongest Acidic)16.91ChemAxon
pKa (Strongest Basic)-2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area37.3 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity63.71 m³·mol⁻¹ChemAxon
Polarizability23.87 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC13H20O2
IUPAC name4-[(1E)-3-hydroxybut-1-en-1-yl]-3,5,5-trimethylcyclohex-2-en-1-one
InChI IdentifierInChI=1S/C13H20O2/c1-9-7-11(15)8-13(3,4)12(9)6-5-10(2)14/h5-7,10,12,14H,8H2,1-4H3/b6-5+
InChI KeyMDCGEAGEQVMWPE-AATRIKPKSA-N
Isomeric SMILESCC(O)\C=C\C1C(C)=CC(=O)CC1(C)C
Average Molecular Weight208.2967
Monoisotopic Molecular Weight208.146329884
Classification
Description Belongs to the class of organic compounds known as sesquiterpenoids. These are terpenes with three consecutive isoprene units.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassPrenol lipids
Sub ClassSesquiterpenoids
Direct ParentSesquiterpenoids
Alternative Parents
Substituents
  • Cyclofarsesane sesquiterpenoid
  • Megastigmane sesquiterpenoid
  • Sesquiterpenoid
  • Ionone derivative
  • Cyclohexenone
  • Cyclic ketone
  • Secondary alcohol
  • Ketone
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Aliphatic homomonocyclic compound
Molecular FrameworkAliphatic homomonocyclic compounds
External DescriptorsNot Available
Ontology
OntologyNo ontology term
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionOilDFC
Mass CompositionC 74.96%; H 9.68%; O 15.36%DFC
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical Rotation[a]20D +245 (c, 1.1 in CHCl3).; [a]20D +177 (c, 1 in EtOH)DFC
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
Predicted GC-MS3-Oxo-alpha-ionol, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-014l-6900000000-175ed8e8e900e68622a8Spectrum
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0006-0920000000-e28db426c476498cb016Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0006-2910000000-f6f0342c3271b58e2297Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-05fr-5900000000-d9246d5b91f9921a98adSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0390000000-2bb483ac3840a1da1c87Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a4r-1980000000-49bfac00968f2c20a928Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-05g3-3900000000-2dc31331233702d75f51Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-05bf-0920000000-8d8e372877b113a5e4e3Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-001i-4900000000-9239880d66792714b68aSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-002b-6900000000-47292d29c4724121a75bSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0a4i-0090000000-43a9bdbf7663e467c30dSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-0910000000-4d272d0d821e030fd7baSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-01p2-1900000000-cca33764e7d01a23d9d8Spectrum
NMRNot Available
ChemSpider IDNot Available
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound IDNot Available
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDJHJ70-D:JHJ71-E
EAFUS IDNot Available
Dr. Duke ID3-OXO-ALPHA-IONOL
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet ID34318-21-3
GoodScent IDrw1552071
SuperScent IDNot Available
Wikipedia IDNot Available
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
FoodReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
Flavours
FlavorCitations
spice
  1. Arn, H, Acree TE. “Flavornet: A database of aroma compounds based on odor potency in natural products”. Developments in Food Science 40 (1998): 27. doi:10.1016/S0167-4501(98)80029-0
spicy
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
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).