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2-Isopropyl-5-methylpyrazine (FDB016146)

Record Information
Version1.0
Creation date2010-04-08 22:12:16 UTC
Update date2019-11-26 03:12:49 UTC
Primary IDFDB016146
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name2-Isopropyl-5-methylpyrazine
Description2-Isopropyl-5-methylpyrazine 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-Isopropyl-5-methylpyrazine is a coffee, earthy, and green tasting compound. 2-Isopropyl-5-methylpyrazine has been detected, but not quantified in, several different foods, such as fishes, robusta coffees (Coffea canephora), potatos (Solanum tuberosum), arabica coffees (Coffea arabica), and cocoa and cocoa products. This could make 2-isopropyl-5-methylpyrazine a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 2-Isopropyl-5-methylpyrazine.
CAS Number13925-05-8
Structure
Thumb
MOLSDFPDBSMILESInChI
Synonyms
SynonymSource
Not AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility35.6 g/LALOGPS
logP1.56ALOGPS
logP1.04ChemAxon
logS-0.58ALOGPS
pKa (Strongest Basic)1.38ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area25.78 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity40.13 m³·mol⁻¹ChemAxon
Polarizability15.82 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC8H12N2
IUPAC name2-methyl-5-(propan-2-yl)pyrazine
InChI IdentifierInChI=1S/C8H12N2/c1-6(2)8-5-9-7(3)4-10-8/h4-6H,1-3H3
InChI KeyPGTQKVQDZHXLOP-UHFFFAOYSA-N
Isomeric SMILESCC(C)C1=NC=C(C)N=C1
Average Molecular Weight136.1943
Monoisotopic Molecular Weight136.100048394
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
Disposition

Route of exposure:

Source:

Biological location:

Role

Biological role:

Physico-Chemical Properties
Physico-Chemical Properties - Experimental
PropertyValueReference
Physical stateNot Available
Physical DescriptionNot Available
Mass CompositionC 70.55%; H 8.88%; N 20.57%DFC
Melting PointNot Available
Boiling PointBp13 68-70° (as 1:1 mixt. with the 2,6-isomer)DFC
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 Indexn23D 1.4865DFC
Spectra
Spectra
EI-MS/GC-MS
TypeDescriptionSplash KeyView
EI-MSMass Spectrum (Electron Ionization)splash10-00dr-2900000000-f2e19f2c14367832138b2015-03-01View Spectrum
Predicted GC-MS2-Isopropyl-5-methylpyrazine, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positivesplash10-000f-9500000000-18ebb0a16ad0ad707afbSpectrum
Predicted GC-MS2-Isopropyl-5-methylpyrazine, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MS2-Isopropyl-5-methylpyrazine, non-derivatized, Predicted GC-MS Spectrum - 70eV, PositiveNot AvailableSpectrum
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0900000000-677ec9793c964d77f8462016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000i-1900000000-da42aad742ec001821a82016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-06dl-9100000000-f5cc59a4921bc93140a42016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0900000000-a7d3dfafb276d73d0a722016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-1900000000-17b3ec6f184eac4fcbed2016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014u-9300000000-7af2ac5135355945a1f02016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-000i-0900000000-560d709635c029cd0cba2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-000i-4900000000-6405e04dc551d7b3f5332021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0fr6-9000000000-1c5a462e8a88a2f9eaee2021-09-22View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0900000000-32a40ed1ef0f2d7ddbbf2021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00ke-9100000000-4e89870f412830cd3c5b2021-09-23View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-014m-9000000000-ac970e8b34a14c1ddf542021-09-23View Spectrum
NMR
TypeDescriptionView
1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 100 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 1000 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 1000 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 200 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 200 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 300 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 300 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 400 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 400 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 500 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 500 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 600 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 600 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 700 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 700 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 800 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 800 MHz, D2O, predicted)Spectrum
1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)Spectrum
1D NMR13C NMR Spectrum (1D, 900 MHz, D2O, predicted)Spectrum
ChemSpider ID55603
ChEMBL IDNot Available
KEGG Compound IDNot Available
Pubchem Compound ID61700
Pubchem Substance IDNot Available
ChEBI IDNot Available
Phenol-Explorer IDNot Available
DrugBank IDNot Available
HMDB IDHMDB37151
CRC / DFC (Dictionary of Food Compounds) IDKOO24-Z:KOO24-Z
EAFUS ID2378
Dr. Duke IDNot Available
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet ID13925-05-8
GoodScent IDrw1036821
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
green
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
coffee
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
nutty
  1. The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
earthy
  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