Hmdb loader
Survey
You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 23:07:19 UTC
Update Date2023-02-21 17:26:08 UTC
HMDB IDHMDB0037865
Secondary Accession Numbers
  • HMDB37865
Metabolite Identification
Common Name2-Ethyl-4,5-dimethyloxazole
Description2-Ethyl-4,5-dimethyloxazole belongs to the class of organic compounds known as 2,4,5-trisubstituted oxazoles. 2,4,5-trisubstituted oxazoles are compounds containing an oxazole ring substituted at positions 2, 4 and 5 only. Oxazole is a five-membered aromatic heterocycle with one oxygen, one nitrogen, and three carbon atoms. Isomers include 1,2-oxazole and 1,3-oxazole. 2-Ethyl-4,5-dimethyloxazole is a creamy, earthy, and green tasting compound. 2-Ethyl-4,5-dimethyloxazole has been detected, but not quantified in, several different foods, such as arabica coffees (Coffea arabica), coffee and coffee products, potatos (Solanum tuberosum), and robusta coffees (Coffea canephora). This could make 2-ethyl-4,5-dimethyloxazole a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 2-Ethyl-4,5-dimethyloxazole.
Structure
Data?1677000368
Synonyms
ValueSource
2-Ethyl-4,5-dimethyl oxazoleHMDB
2-Ethyl-4,5-dimethyl-1,3-oxazoleHMDB
2-Ethyl-4,5-dimethyl-oxazoleHMDB
4,5-Dimethyl-2-ethyloxazoleHMDB
FEMA 3672HMDB
Chemical FormulaC7H11NO
Average Molecular Weight125.1683
Monoisotopic Molecular Weight125.084063979
IUPAC Name2-ethyl-4,5-dimethyl-1,3-oxazole
Traditional Name2-ethyl-4,5-dimethyl-1,3-oxazole
CAS Registry Number53833-30-0
SMILES
CCC1=NC(C)=C(C)O1
InChI Identifier
InChI=1S/C7H11NO/c1-4-7-8-5(2)6(3)9-7/h4H2,1-3H3
InChI KeyLCYOFVYHDBWYSI-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 2,4,5-trisubstituted oxazoles. 2,4,5-Trisubstituted oxazoles are compounds containing an oxazole ring substituted at positions 2, 4 and 5 only. Oxazole is a five-membered aromatic heterocycle with one oxygen, one nitrogen, and three carbon atoms. Isomers include 1,2-oxazole and 1,3-oxazole.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassAzoles
Sub ClassOxazoles
Direct Parent2,4,5-trisubstituted oxazoles
Alternative Parents
Substituents
  • 2,4,5-trisubstituted 1,3-oxazole
  • Heteroaromatic compound
  • Oxacycle
  • Azacycle
  • Organic nitrogen compound
  • Organic oxygen compound
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Organooxygen compound
  • 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 Point60.00 °C. @ 18.00 mm HgThe Good Scents Company Information System
Water Solubility949.3 mg/L @ 25 °C (est)The Good Scents Company Information System
LogP1.715 (est)The Good Scents Company Information System
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility5.89 g/LALOGPS
logP2.18ALOGPS
logP1.07ChemAxon
logS-1.3ALOGPS
pKa (Strongest Basic)1.83ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area26.03 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity35.58 m³·mol⁻¹ChemAxon
Polarizability14.63 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]+127.231661259
DarkChem[M-H]-125.32731661259
DeepCCS[M+H]+135.30130932474
DeepCCS[M-H]-132.75130932474
DeepCCS[M-2H]-169.25430932474
DeepCCS[M+Na]+144.27430932474
AllCCS[M+H]+126.532859911
AllCCS[M+H-H2O]+121.832859911
AllCCS[M+NH4]+130.832859911
AllCCS[M+Na]+132.032859911
AllCCS[M-H]-126.632859911
AllCCS[M+Na-2H]-128.832859911
AllCCS[M+HCOO]-131.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
2-Ethyl-4,5-dimethyloxazoleCCC1=NC(C)=C(C)O11236.2Standard polar33892256
2-Ethyl-4,5-dimethyloxazoleCCC1=NC(C)=C(C)O1910.2Standard non polar33892256
2-Ethyl-4,5-dimethyloxazoleCCC1=NC(C)=C(C)O1909.6Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - 2-Ethyl-4,5-dimethyloxazole EI-B (Non-derivatized)splash10-0706-9500000000-fb0d7c2217cb671cbeea2017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - 2-Ethyl-4,5-dimethyloxazole EI-B (Non-derivatized)splash10-0706-9500000000-fb0d7c2217cb671cbeea2018-05-18HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2-Ethyl-4,5-dimethyloxazole GC-MS (Non-derivatized) - 70eV, Positivesplash10-01t9-9600000000-38719fbd86e323cc41592017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 2-Ethyl-4,5-dimethyloxazole GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
MSMass Spectrum (Electron Ionization)splash10-01r6-9600000000-1dec1c13983334178eef2015-03-01Not AvailableView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 10V, Positive-QTOFsplash10-004i-0900000000-916eee99ba4e485eb38b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 20V, Positive-QTOFsplash10-004i-6900000000-7a411f5abbe3146770dc2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 40V, Positive-QTOFsplash10-0udi-9000000000-92a3385d1157b866561d2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 10V, Negative-QTOFsplash10-00di-3900000000-57a0dc105551d2b1c1fe2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 20V, Negative-QTOFsplash10-0089-9300000000-8190f2b532708d1694872016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 40V, Negative-QTOFsplash10-0006-9000000000-f5da892dd1038d150b7b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 10V, Positive-QTOFsplash10-004i-2900000000-54e19a17e5b306ed4b512021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 20V, Positive-QTOFsplash10-0059-9300000000-14cb0c94b66f21cdb3f22021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 40V, Positive-QTOFsplash10-0pc0-9000000000-66fbc9e4d25c8e4657e42021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 10V, Negative-QTOFsplash10-00di-2900000000-b6419ab3133503750ef12021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 20V, Negative-QTOFsplash10-0fl3-9300000000-1d6b86125828d4c8f7872021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 2-Ethyl-4,5-dimethyloxazole 40V, Negative-QTOFsplash10-0udl-9000000000-7eae5ac1d4fe6ce7d43b2021-09-22Wishart 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 IDFDB017018
KNApSAcK IDNot Available
Chemspider ID55906
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound62069
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1037371
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.. .