Record Information
Version1.0
Creation date2011-09-26 22:53:48 UTC
Update date2015-07-21 07:00:02 UTC
Primary IDFDB029660
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name2-ethyl-6(or 5)-methylpyrazine
Description2-Ethyl-3-methylpyrazine, 9CI belongs to the class of organic compounds known as pyrazines. Pyrazines are compounds containing a pyrazine ring, which is a six-member aromatic heterocycle, that consists of two nitrogen atoms (at positions 1 and 4) and four carbon atoms. 2-Ethyl-3-methylpyrazine, 9CI is a bread, corn, and earthy tasting compound. 2-Ethyl-3-methylpyrazine, 9CI has been detected, but not quantified in, several different foods, such as breakfast cereal, potatos (Solanum tuberosum), fenugreeks (Trigonella foenum-graecum), tortilla chip, and cereals and cereal products. This could make 2-ethyl-3-methylpyrazine, 9CI a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 2-Ethyl-3-methylpyrazine, 9CI.
CAS Number33504-66-4
Structure
Thumb
Synonyms
SynonymSource
2-ETHYL-3-methyl pyrazineHMDB
2-Ethyl-3-methyl-pyrazineHMDB
2-Methyl-3-ethylpyrazineHMDB
3-Ethyl-2-methylpyrazineHMDB
FEMA 3155HMDB
Pyrazine, 3-ethyl-2-methylHMDB
Predicted Properties
PropertyValueSource
Water Solubility81.7 g/LALOGPS
logP1.2ALOGPS
logP0.5ChemAxon
logS-0.17ALOGPS
pKa (Strongest Basic)1.52ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area25.78 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity35.55 m³·mol⁻¹ChemAxon
Polarizability13.67 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC7H10N2
IUPAC name2-ethyl-3-methylpyrazine
InChI IdentifierInChI=1S/C7H10N2/c1-3-7-6(2)8-4-5-9-7/h4-5H,3H2,1-2H3
InChI KeyLNIMMWYNSBZESE-UHFFFAOYSA-N
Isomeric SMILESCCC1=C(C)N=CC=N1
Average Molecular Weight122.1677
Monoisotopic Molecular Weight122.08439833
Classification
Description Belongs to the class of organic compounds known as pyrazines. Pyrazines are compounds containing a pyrazine ring, which is a six-member aromatic heterocycle, that consists of two nitrogen atoms (at positions 1 and 4) and four carbon atoms.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassDiazines
Sub ClassPyrazines
Direct ParentPyrazines
Alternative Parents
Substituents
  • Pyrazine
  • Heteroaromatic compound
  • Azacycle
  • Organic nitrogen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
Ontology
OntologyNo ontology term
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionNot Available
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)splash10-00di-9400000000-2a5e48d57dcba4269fd02015-03-01View Spectrum
GC-MS2-Ethyl-3-methylpyrazine, 9CI, non-derivatized, GC-MS Spectrumsplash10-00ec-9400000000-21ce3f1c275e177e6431Spectrum
GC-MS2-Ethyl-3-methylpyrazine, 9CI, non-derivatized, GC-MS Spectrumsplash10-00ec-9400000000-21ce3f1c275e177e6431Spectrum
Predicted GC-MS2-Ethyl-3-methylpyrazine, 9CI, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-05gi-9600000000-166a9ba47509c2ce42cdSpectrum
Predicted GC-MS2-Ethyl-3-methylpyrazine, 9CI, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
MS/MSLC-MS/MS Spectrum - Orbitrap 3V, positivesplash10-00di-0900000000-9c3e6d0a8c6fa5ded4712020-07-22View Spectrum
MS/MSLC-MS/MS Spectrum - Orbitrap 4V, positivesplash10-00di-0900000000-79572640238a185d12bc2020-07-22View Spectrum
MS/MSLC-MS/MS Spectrum - Orbitrap 5V, positivesplash10-0ab9-0900000000-058e5e23755d8db9b2dc2020-07-22View Spectrum
MS/MSLC-MS/MS Spectrum - Orbitrap 6V, positivesplash10-0a4i-1900000000-5e98506dc168f399ff392020-07-22View Spectrum
MS/MSLC-MS/MS Spectrum - Orbitrap 7V, positivesplash10-0a4i-2900000000-3b2d8c4e4042e77ea3642020-07-22View Spectrum
MS/MSLC-MS/MS Spectrum - Orbitrap 9V, positivesplash10-0a4i-7900000000-27c3ae9c3dff82f761ab2020-07-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-1900000000-bde72fd64f21c65f898d2016-06-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-2900000000-f79c8a91fe510db35c1a2016-06-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-014l-9000000000-0a6e9dc60719aed296272016-06-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00di-0900000000-fcb3b4203b07372c58aa2016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00di-1900000000-2b8f01d57a2cdfea37252016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-052f-9200000000-9b260ce63035e86a06062016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00di-0900000000-f917b7eaee02fed474b82021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00di-6900000000-41a71c3e14975b6c54282021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9000000000-2c7c328760904b073bcd2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-3900000000-5b91b44a16894f4bae3d2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00xs-9400000000-7edb3bff5bbab817059f2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0ku6-9000000000-f9f3309a7d3383c650e02021-09-22View Spectrum
NMR
TypeDescriptionView
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Spectrum
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) IDNot Available
EAFUS IDNot Available
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet ID33504-66-4
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
FoodReference
Biological Effects and Interactions
Health Effects / BioactivitiesNot Available
EnzymesNot Available
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
Flavours
FlavorCitations
sweat
  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
Files
MSDSNot Available
References
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference