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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-12 01:35:16 UTC
Update Date2023-02-21 17:27:29 UTC
HMDB IDHMDB0040041
Secondary Accession Numbers
  • HMDB40041
Metabolite Identification
Common Name2-Ethyl-5-methylpyridine
Description2-Ethyl-5-methylpyridine 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. 2-Ethyl-5-methylpyridine has been detected, but not quantified in, several different foods, such as arabica coffees (Coffea arabica), coffee and coffee products, crustaceans, and robusta coffees (Coffea canephora). This could make 2-ethyl-5-methylpyridine a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 2-Ethyl-5-methylpyridine.
Structure
Data?1677000449
Synonyms
ValueSource
5-Methyl-2-ethyl pyridineHMDB
6-Ethyl-3-picolineHMDB
Chemical FormulaC8H11N
Average Molecular Weight121.1796
Monoisotopic Molecular Weight121.089149357
IUPAC Name2-ethyl-5-methylpyridine
Traditional Name2-ethyl-5-methylpyridine
CAS Registry Number18113-81-0
SMILES
CCC1=NC=C(C)C=C1
InChI Identifier
InChI=1S/C8H11N/c1-3-8-5-4-7(2)6-9-8/h4-6H,3H2,1-2H3
InChI KeyCOHDGTRFTKHYSJ-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
Physiological effectNot Available
Disposition
ProcessNot Available
Role
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water Solubility18030 mg/L @ 25 °C (est)The Good Scents Company Information System
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility32.1 g/LALOGPS
logP2.17ALOGPS
logP2.1ChemAxon
logS-0.58ALOGPS
pKa (Strongest Basic)6.06ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area12.89 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity38.16 m³·mol⁻¹ChemAxon
Polarizability14.47 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]+126.2631661259
DarkChem[M-H]-123.75431661259
DeepCCS[M+H]+130.13330932474
DeepCCS[M-H]-126.35630932474
DeepCCS[M-2H]-163.67430932474
DeepCCS[M+Na]+139.04230932474
AllCCS[M+H]+122.232859911
AllCCS[M+H-H2O]+117.332859911
AllCCS[M+NH4]+126.832859911
AllCCS[M+Na]+128.132859911
AllCCS[M-H]-126.832859911
AllCCS[M+Na-2H]-128.932859911
AllCCS[M+HCOO]-131.232859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
2-Ethyl-5-methylpyridineCCC1=NC=C(C)C=C11417.6Standard polar33892256
2-Ethyl-5-methylpyridineCCC1=NC=C(C)C=C1981.8Standard non polar33892256
2-Ethyl-5-methylpyridineCCC1=NC=C(C)C=C11008.1Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 2-Ethyl-5-methylpyridine GC-MS (Non-derivatized) - 70eV, Positivesplash10-05fu-8900000000-b22a4784728dc164d25d2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2-Ethyl-5-methylpyridine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2-Ethyl-5-methylpyridine GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 10V, Positive-QTOFsplash10-00di-0900000000-73699daa25d3df040ee82017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 20V, Positive-QTOFsplash10-00di-2900000000-e2f8a629b55f8e4934142017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 40V, Positive-QTOFsplash10-05mo-9200000000-34a0c70dcc82a8f120852017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 10V, Negative-QTOFsplash10-00di-0900000000-c75a39049689ae98b1e82017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 20V, Negative-QTOFsplash10-00di-0900000000-afa19d1cc4358f9717bd2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 40V, Negative-QTOFsplash10-0f6x-9300000000-1625ce7e2c86fd82b1892017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 10V, Negative-QTOFsplash10-00di-1900000000-bbf4344378f376692fea2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 20V, Negative-QTOFsplash10-00di-6900000000-c2f5cc191cfdbcde12f82021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 40V, Negative-QTOFsplash10-0f6x-9000000000-2b7a51a592b2ff2e12052021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 10V, Positive-QTOFsplash10-00di-2900000000-b26f5259f37ea9dd681c2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 20V, Positive-QTOFsplash10-0006-9200000000-e16cb264e382c3c008222021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-5-methylpyridine 40V, Positive-QTOFsplash10-00kf-9000000000-52b57c6fbca3885f69602021-09-24Wishart LabView Spectrum

NMR Spectra

Spectrum TypeDescriptionDeposition DateSourceView
Predicted 1D NMR1H NMR Spectrum (1D, 100 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C NMR Spectrum (1D, 100 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, 1000 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, 200 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, 300 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, 400 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, 500 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, 600 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, 700 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, 800 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR1H NMR Spectrum (1D, 900 MHz, D2O, predicted)2021-09-24Wishart LabView Spectrum
Predicted 1D NMR13C 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 IDFDB019728
KNApSAcK IDNot Available
Chemspider ID453160
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound519519
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1629241
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.. .