Record Information
Version1.0
Creation date2010-04-08 22:07:34 UTC
Update date2019-11-26 03:01:37 UTC
Primary IDFDB007338
Secondary Accession NumbersNot Available
Chemical Information
FooDB Name2-Methylthio-3-isopropylpyrazine
Description2-methylthio-3-isopropylpyrazine is a member of the class of compounds known as aryl thioethers. Aryl thioethers are organosulfur compounds containing a thioether group that is substituted by an aryl group. 2-methylthio-3-isopropylpyrazine is slightly soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). 2-methylthio-3-isopropylpyrazine can be found in fenugreek, which makes 2-methylthio-3-isopropylpyrazine a potential biomarker for the consumption of this food product.
CAS NumberNot Available
Structure
Thumb
Synonyms
SynonymSource
Predicted Properties
PropertyValueSource
Water Solubility4.97 g/LALOGPS
logP2.45ALOGPS
logP2.14ChemAxon
logS-1.5ALOGPS
pKa (Strongest Basic)0.65ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area25.78 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity48.61 m³·mol⁻¹ChemAxon
Polarizability18.44 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Chemical FormulaC8H12N2S
IUPAC name2-(methylsulfanyl)-3-(propan-2-yl)pyrazine
InChI IdentifierInChI=1S/C8H12N2S/c1-6(2)7-8(11-3)10-5-4-9-7/h4-6H,1-3H3
InChI KeyMUSIVZZZFRJWGI-UHFFFAOYSA-N
Isomeric SMILESCSC1=C(N=CC=N1)C(C)C
Average Molecular Weight168.26
Monoisotopic Molecular Weight168.072119568
Classification
Description Belongs to the class of organic compounds known as aryl thioethers. These are organosulfur compounds containing a thioether group that is substituted by an aryl group.
KingdomOrganic compounds
Super ClassOrganosulfur compounds
ClassThioethers
Sub ClassAryl thioethers
Direct ParentAryl thioethers
Alternative Parents
Substituents
  • Aryl thioether
  • Alkylarylthioether
  • Pyrazine
  • Heteroaromatic compound
  • Azacycle
  • Organoheterocyclic compound
  • Sulfenyl compound
  • 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
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-MSNot Available
MS/MS
TypeDescriptionSplash KeyView
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014i-0900000000-ef000ecc91c7f106385c2016-08-02View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-014i-0900000000-8033d69f1961683f12582016-08-02View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-00xu-9600000000-657796dc4d72cafd14ca2016-08-02View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-2900000000-62536511ac891719fc702016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014i-1900000000-6de4b53b17a3febc16762016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-014i-9100000000-9cdc8117eb921b3ca5ae2016-08-03View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-014i-0900000000-e08d35d5ecf65929d1ab2021-10-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01b9-2900000000-2d5adf9aca318f2a1f072021-10-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-06dl-9200000000-ace07e5da8e3a8efdcd32021-10-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-0900000000-93326bc49be9f02f8d3e2021-10-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014i-1900000000-8c6a6258b1af69b568ba2021-10-21View Spectrum
Predicted MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-00mk-9800000000-4d6f9a8e7f5a452d3b452021-10-21View Spectrum
NMRNot Available
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 ID2-METHYL-THIO-3-ISO-PROPYL-PYRAZINE
BIGG IDNot Available
KNApSAcK IDNot Available
HET IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Flavornet IDNot Available
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
FlavoursNot Available
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).