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Record Information
Version4.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:48:53 UTC
Update Date2019-01-11 19:44:23 UTC
HMDB IDHMDB0032276
Secondary Accession Numbers
  • HMDB32276
Metabolite Identification
Common Name2-Ethyl-3,(5 or 6)-dimethylpyrazine
Description3-Ethyl-2,5-dimethylpyrazine is found in coffee and coffee products. 3-Ethyl-2,5-dimethylpyrazine is isolated from coffee. 2-Ethyl-3,(5 or 6)-dimethylpyrazine is a constituent of numerous cooked foods. 3-Ethyl-2,5-dimethylpyrazine is organoleptic agent with nutty roasted odour.
Structure
Data?1547235862
Synonyms
ValueSource
2-Ethyl-3,5/6-dimethyl-pyrazineHMDB
Chemical FormulaC8H12N2
Average Molecular Weight136.1943
Monoisotopic Molecular Weight136.100048394
IUPAC Name3-ethyl-2,5-dimethylpyrazine
Traditional Name3-ethyl-2,5-dimethylpyrazine
CAS Registry Number27043-05-6
SMILES
CCC1=NC(C)=CN=C1C
InChI Identifier
InChI=1S/C8H12N2/c1-4-8-7(3)9-5-6(2)10-8/h5H,4H2,1-3H3
InChI KeyWHMWOHBXYIZFPF-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of organic compounds known as pyrazines. These 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
  • Hydrocarbon derivative
  • Organonitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
Ontology
Disposition

Route of exposure:

Source:

Biological location:

Role

Biological role:

Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility21.4 g/LALOGPS
logP1.59ALOGPS
logP0.63ChemAxon
logS-0.8ALOGPS
pKa (Strongest Basic)1.93ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area25.78 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity40.15 m³·mol⁻¹ChemAxon
Polarizability15.86 ųChemAxon
Number of Rings1ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectrum TypeDescriptionSplash Key
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0079-5900000000-8972bb1f230d4ce37aa0View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0900000000-0314177c3c76c33d3a62View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-2900000000-17c28b506f498cff1d9fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00kf-9100000000-53eee1c2cd50606623a0View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0900000000-ec3a2f6d876ea167479fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-1900000000-eb3d7afc9b1afc13d34cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0ap0-8900000000-4026d008af47668a5d3dView in MoNA
Biological Properties
Cellular Locations
  • Cytoplasm
  • Extracellular
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDFDB009405
KNApSAcK IDNot Available
Chemspider ID24145
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound25916
PDB IDNot Available
ChEBI IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .