Record Information
Version1.0
Creation date2010-04-08 22:14:46 UTC
Update date2019-11-26 03:18:25 UTC
Primary IDFDB020065
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name2-Isopropyl-3-methoxypyrazine
Description2-Isopropyl-3-methoxypyrazine belongs to the class of organic compounds known as methoxypyrazines. These are pyrazines containing a methoxyl group attached to the pyrazine ring. 2-Isopropyl-3-methoxypyrazine is a beany, earthy, and pea tasting compound. 2-Isopropyl-3-methoxypyrazine has been detected, but not quantified in, several different foods, such as yellow bell peppers (Capsicum annuum), orange bell peppers (Capsicum annuum), milk and milk products, red bell peppers (Capsicum annuum), and green bell peppers (Capsicum annuum). This could make 2-isopropyl-3-methoxypyrazine a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 2-Isopropyl-3-methoxypyrazine.
CAS Number25773-40-4
Structure
Thumb
Synonyms
SynonymSource
3-Isopropyl-2-methoxypyrazineHMDB, MeSH
2-Methoxy-3-isopropylpyrazineMeSH, HMDB
2-Isopropyl-3-methoxypyrazineMeSH
Predicted Properties
PropertyValueSource
Water Solubility61.4 g/LALOGPS
logP2.08ALOGPS
logP1.35ChemAxon
logS-0.39ALOGPS
pKa (Strongest Basic)0.88ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area35.01 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity42.31 m³·mol⁻¹ChemAxon
Polarizability16.41 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC8H12N2O
IUPAC name2-methoxy-3-(propan-2-yl)pyrazine
InChI IdentifierInChI=1S/C8H12N2O/c1-6(2)7-8(11-3)10-5-4-9-7/h4-6H,1-3H3
InChI KeyNTOPKICPEQUPPH-UHFFFAOYSA-N
Isomeric SMILESCOC1=NC=CN=C1C(C)C
Average Molecular Weight152.1937
Monoisotopic Molecular Weight152.094963016
Classification
Description Belongs to the class of organic compounds known as methoxypyrazines. These are pyrazines containing a methoxyl group attached to the pyrazine ring.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassDiazines
Sub ClassPyrazines
Direct ParentMethoxypyrazines
Alternative Parents
Substituents
  • Methoxypyrazine
  • Alkyl aryl ether
  • Heteroaromatic compound
  • Azacycle
  • Ether
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
Ontology
Disposition

Route of exposure:

Source:

Biological location:

Role

Industrial application:

Biological role:

Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionC 63.13%; H 7.95%; N 18.41%; O 10.51%DFC
Melting PointNot Available
Boiling PointNot Available
Experimental Water SolubilityNot Available
Experimental logPNot Available
Experimental pKaNot Available
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
DensityNot Available
Refractive IndexNot Available
Spectra
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
EI-MSMass Spectrum (Electron Ionization)splash10-000i-4900000000-ae2469645399d144339fSpectrum
Predicted GC-MS2-Isopropyl-3-methoxypyrazine, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-0f76-7900000000-89789da5da35572fa227Spectrum
Predicted GC-MS2-Isopropyl-3-methoxypyrazine, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0udi-0900000000-e285b25da921fef16959Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0udi-1900000000-b268081ebc09e0f7feb9Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00xu-9200000000-dc84efe47461b1bb60ffSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-1900000000-2f7ddba10a979f8d8d0bSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0pb9-6900000000-a08d8f5215393a4cfbc8Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014i-9000000000-69143a25f87748df0151Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0udi-0900000000-69fb340fe88fc17a618fSpectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0udl-5900000000-b7d79c1eac40fd036eb4Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0zfr-9000000000-58f719671aa890294871Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-0900000000-4920948e818c9af84110Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0fr2-2900000000-79d44e91e9e8abd735e0Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0aou-9300000000-a50b0677924bf49ae6d5Spectrum
NMR
TypeDescriptionView
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
1D NMR1H NMR SpectrumSpectrum
1D NMR13C NMR SpectrumSpectrum
ChemSpider ID30649
ChEMBL IDCHEMBL96852
KEGG Compound IDNot Available
Pubchem Compound ID33166
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDDB01760
HMDB IDHMDB40340
CRC / DFC (Dictionary of Food Compounds) IDDNB41-J:MKB66-U
EAFUS IDNot Available
Dr. Duke ID3-ISOPROPYL-2-METHOXYPYRAZINE
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDIPZ
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet ID25773-40-4
GoodScent IDrw1107761
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
pea
  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
  2. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
earth
  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
earthy
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
beany
  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).