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Record Information
Version4.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:32:17 UTC
Update Date2020-02-26 21:44:16 UTC
HMDB IDHMDB0029729
Secondary Accession Numbers
  • HMDB29729
Metabolite Identification
Common Name5-Ethyl-2-methylpyridine
Description5-Ethyl-2-methylpyridine, also known as 5-ethyl-a-picoline or aldehydecollidine, belongs to the class of organic compounds known as methylpyridines. These are organic compounds containing a pyridine ring substituted at one or more positions by a methyl group. 5-Ethyl-2-methylpyridine is a very strong basic compound (based on its pKa). 5-Ethyl-2-methylpyridine is a strong, earthy, and nutty tasting compound. Outside of the human body, 5-Ethyl-2-methylpyridine has been detected, but not quantified in, several different foods, such as alcoholic beverages, cocoa and cocoa products, peppermints, pulses, and tea. This could make 5-ethyl-2-methylpyridine a potential biomarker for the consumption of these foods.
Structure
Data?1582753456
Synonyms
ValueSource
5-Ethyl-a-picolineHMDB
5-Ethyl-alpha-picolineHMDB
AldehydecollidineHMDB
FEMA 3546HMDB
2-Methyl-5-ethylpyridineMeSH
Chemical FormulaC8H11N
Average Molecular Weight121.1796
Monoisotopic Molecular Weight121.089149357
IUPAC Name5-ethyl-2-methylpyridine
Traditional Name5-ethyl-2-methylpyridine
CAS Registry Number104-90-5
SMILES
CCC1=CN=C(C)C=C1
InChI Identifier
InChI=1S/C8H11N/c1-3-8-5-4-7(2)9-6-8/h4-6H,3H2,1-2H3
InChI KeyNTSLROIKFLNUIJ-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as methylpyridines. These are organic compounds containing a pyridine ring substituted at one or more positions by a methyl group.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassPyridines and derivatives
Sub ClassMethylpyridines
Direct ParentMethylpyridines
Alternative Parents
Substituents
  • Methylpyridine
  • 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

Industrial application:

Physical Properties
StateLiquid
Experimental Properties
PropertyValueReference
Melting Point-70.9 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility12 mg/mL at 20 °CNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility31.1 g/LALOGPS
logP2.19ALOGPS
logP1.84ChemAxon
logS-0.59ALOGPS
pKa (Strongest Basic)6.19ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area12.89 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity38.13 m³·mol⁻¹ChemAxon
Polarizability14.45 ųChemAxon
Number of Rings1ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyView
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0ab9-7900000000-e29b4b7d7a232205ca0aSpectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0adi-7900000000-a64ea8a8474480267f8bSpectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0ab9-7900000000-e29b4b7d7a232205ca0aSpectrum
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0adi-7900000000-a64ea8a8474480267f8bSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-05fu-8900000000-f416cbf1ec4b8da3712aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-00di-0900000000-0b1f0d7d9177caf54000Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00di-3900000000-32c024469cc769ef68b8Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0kdi-9200000000-69c9b4e305843eb16a8dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-00di-0900000000-3fb27d734ba52be02b26Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00di-1900000000-c8abaaea92c1b5d01da1Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0udi-9700000000-bb7d22631bd86f2f22f6Spectrum
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 IDFDB000925
KNApSAcK IDNot Available
Chemspider ID21105900
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound7728
PDB IDNot Available
ChEBI ID481701
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB ID
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.. .