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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-12 02:55:29 UTC
Update Date2023-02-21 17:28:36 UTC
HMDB IDHMDB0041253
Secondary Accession Numbers
  • HMDB41253
Metabolite Identification
Common Name2,3-Diethylpyrazine
Description2,3-Diethylpyrazine 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. 2,3-Diethylpyrazine is a moderately basic compound (based on its pKa). 2,3-Diethylpyrazine is a green, hazelnut, and nutty-tasting compound. Outside of the human body, 2,3-diethylpyrazine has been detected, but not quantified in a few different foods such as cereals and cereal products, nuts, and potato. It occurs naturally in asparagus, black or green tea, crispbread, malt, shrimp, soya, squid, Swiss cheeses, French fries, malt, peated malt, roasted barley, wild rice (Zizania aquatica), and wort. This could make 2,3-diethylpyrazine a potential biomarker for the consumption of these foods. 2,3-Diethylpyrazine is an alkylpyrazine. These are chemical compounds based on pyrazine with different substitution patterns and are formed during the cooking of some foods via Maillard reactions. 2,3-Diethylpyrazine is a flavour component in cooked foods (e.g. baked potato, wheat bread, and roasted filbert). 2,3-Diethylpyrazine is a flavouring ingredient, additive, and odorant in foods such as cereals and products such as cigarettes. 2,3-Diethylpyrazine is a component of the aroma of roasted sesame seeds.
Structure
Data?1677000516
Synonyms
ValueSource
23-Diethyl-pyrazineChEMBL, HMDB
2,3-Diethyl-pyrazineHMDB
FEMA 3136HMDB
Chemical FormulaC8H12N2
Average Molecular Weight136.1943
Monoisotopic Molecular Weight136.100048394
IUPAC Name2,3-diethylpyrazine
Traditional Namepyrazine, 2,3-diethyl-
CAS Registry Number15707-24-1
SMILES
CCC1=NC=CN=C1CC
InChI Identifier
InChI=1S/C8H12N2/c1-3-7-8(4-2)10-6-5-9-7/h5-6H,3-4H2,1-2H3
InChI KeyGZXXANJCCWGCSV-UHFFFAOYSA-N
Chemical Taxonomy
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
Physiological effect
Disposition
ProcessNot Available
Role
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling Point180.00 to 182.00 °C. @ 760.00 mm HgThe Good Scents Company Information System
Water Solubility4458 mg/L @ 25 °C (est)The Good Scents Company Information System
LogP1.51Not Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility32.4 g/LALOGPS
logP1.73ALOGPS
logP1.2ChemAxon
logS-0.62ALOGPS
pKa (Strongest Basic)1.41ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area25.78 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity40.18 m³·mol⁻¹ChemAxon
Polarizability15.59 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+128.71131661259
DarkChem[M-H]-127.83831661259
DeepCCS[M+H]+130.3830932474
DeepCCS[M-H]-126.84330932474
DeepCCS[M-2H]-163.85930932474
DeepCCS[M+Na]+138.94530932474
AllCCS[M+H]+127.932859911
AllCCS[M+H-H2O]+123.232859911
AllCCS[M+NH4]+132.432859911
AllCCS[M+Na]+133.632859911
AllCCS[M-H]-130.832859911
AllCCS[M+Na-2H]-132.732859911
AllCCS[M+HCOO]-134.732859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
2,3-DiethylpyrazineCCC1=C(CC)N=CC=N11436.4Standard polar33892256
2,3-DiethylpyrazineCCC1=C(CC)N=CC=N11038.4Standard non polar33892256
2,3-DiethylpyrazineCCC1=C(CC)N=CC=N11087.0Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 2,3-Diethylpyrazine GC-MS (Non-derivatized) - 70eV, Positivesplash10-000i-3900000000-632b99b7e87a915b42402017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2,3-Diethylpyrazine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
MSMass Spectrum (Electron Ionization)splash10-0079-9800000000-d2289576e8614fdc02d52015-03-01Not AvailableView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine Orbitrap 3V, positive-QTOFsplash10-000i-0900000000-f5eb10a8f15c4923e0b92020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine Orbitrap 4V, positive-QTOFsplash10-000i-0900000000-766afff92c4203e27f272020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine Orbitrap 5V, positive-QTOFsplash10-0079-0900000000-3edb90f2f3e68d0fd3b82020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine Orbitrap 6V, positive-QTOFsplash10-00di-1900000000-73547ccd99c8414f21b32020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine Orbitrap 8V, positive-QTOFsplash10-00di-3900000000-290ba86f424c2049b2f52020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine Orbitrap 9V, positive-QTOFsplash10-00di-5900000000-9a3267f0fd30876ee48e2020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine Orbitrap 11V, positive-QTOFsplash10-00dl-9600000000-c7b334c86fbc51f29b2c2020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine n/a 9V, positive-QTOFsplash10-05fr-2900000000-5cf9177dd5e77f983d302020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine n/a 9V, positive-QTOFsplash10-0006-9000000000-2286a1314a31b4e9efc52020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine n/a 9V, positive-QTOFsplash10-0f6x-9500000000-80eaf5f7c84246242cd82020-07-22HMDB team, MONAView Spectrum
Experimental LC-MS/MSLC-MS/MS Spectrum - 2,3-Diethylpyrazine n/a 9V, positive-QTOFsplash10-0006-9000000000-74acb49ed27175f1637c2020-07-22HMDB team, MONAView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 10V, Positive-QTOFsplash10-000i-0900000000-60c98f58870260d3be592016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 20V, Positive-QTOFsplash10-000i-0900000000-31392493cb04841ac3b02016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 40V, Positive-QTOFsplash10-0f7o-9100000000-3256c420e403e713b3532016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 10V, Negative-QTOFsplash10-000i-0900000000-2b131ade42f8eb7803812016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 20V, Negative-QTOFsplash10-000i-0900000000-86d476518bbf5b35aca92016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 40V, Negative-QTOFsplash10-0a4i-9700000000-e88ba82d6f2c4881000c2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 10V, Positive-QTOFsplash10-000i-0900000000-ac299646e14f1770c4b52021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 20V, Positive-QTOFsplash10-000i-2900000000-2e9fa731e0892027a1252021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 40V, Positive-QTOFsplash10-0006-9300000000-0fca251c70e9a6e5bb302021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 10V, Negative-QTOFsplash10-000i-0900000000-c87d0c2a7815092d2a6f2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 20V, Negative-QTOFsplash10-052r-0900000000-e5c97fa550723466bc202021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2,3-Diethylpyrazine 40V, Negative-QTOFsplash10-0a4i-8900000000-6227a4d53f06cb573bb62021-09-22Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum

IR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)2023-02-04FELIX labView Spectrum
Predicted IR SpectrumIR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)2023-02-04FELIX labView Spectrum
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
FooDB IDFDB021161
KNApSAcK IDNot Available
Chemspider ID25552
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkAlkylpyrazine
METLIN IDNot Available
PubChem Compound27458
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1017911
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.. .