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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 23:07:30 UTC
Update Date2023-02-21 17:26:10 UTC
HMDB IDHMDB0037869
Secondary Accession Numbers
  • HMDB37869
Metabolite Identification
Common Name4,5-Dimethyl-2-propyloxazole
Description4,5-Dimethyl-2-propyloxazole 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. 4,5-Dimethyl-2-propyloxazole is a burnt and roasted tasting compound. 4,5-Dimethyl-2-propyloxazole has been detected, but not quantified in, a few different foods, such as arabica coffees (Coffea arabica), coffee and coffee products, and robusta coffees (Coffea canephora). This could make 4,5-dimethyl-2-propyloxazole a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 4,5-Dimethyl-2-propyloxazole.
Structure
Data?1677000370
Synonyms
ValueSource
2-N-Propyl-4,5-dimethyloxazoleHMDB
4,5-Dimethyl-2-propyl-1,3-oxazoleHMDB
4,5-Dimethyl-2-propyl-oxazoleHMDB
Chemical FormulaC8H13NO
Average Molecular Weight139.1949
Monoisotopic Molecular Weight139.099714043
IUPAC Name4,5-dimethyl-2-propyl-1,3-oxazole
Traditional Name4,5-dimethyl-2-propyl-1,3-oxazole
CAS Registry Number53833-32-2
SMILES
CCCC1=NC(C)=C(C)O1
InChI Identifier
InChI=1S/C8H13NO/c1-4-5-8-9-6(2)7(3)10-8/h4-5H2,1-3H3
InChI KeySDRFPOFMNGISHT-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 Point59.00 °C. @ 760.00 mm HgThe Good Scents Company Information System
Boiling Point188.00 to 189.00 °C. @ 760.00 mm HgThe Good Scents Company Information System
Water Solubility0The Good Scents Company Information System
LogP2.225 (est)The Good Scents Company Information System
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility1.23 g/LALOGPS
logP2.62ALOGPS
logP1.51ChemAxon
logS-2ALOGPS
pKa (Strongest Basic)1.81ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area26.03 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity40.18 m³·mol⁻¹ChemAxon
Polarizability16.78 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]+128.84531661259
DarkChem[M-H]-128.26531661259
DeepCCS[M+H]+138.87530932474
DeepCCS[M-H]-135.95530932474
DeepCCS[M-2H]-172.84130932474
DeepCCS[M+Na]+147.99230932474
AllCCS[M+H]+130.632859911
AllCCS[M+H-H2O]+126.132859911
AllCCS[M+NH4]+134.832859911
AllCCS[M+Na]+136.032859911
AllCCS[M-H]-132.132859911
AllCCS[M+Na-2H]-134.132859911
AllCCS[M+HCOO]-136.232859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
4,5-Dimethyl-2-propyloxazoleCCCC1=NC(C)=C(C)O11286.4Standard polar33892256
4,5-Dimethyl-2-propyloxazoleCCCC1=NC(C)=C(C)O1989.3Standard non polar33892256
4,5-Dimethyl-2-propyloxazoleCCCC1=NC(C)=C(C)O1998.0Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Experimental GC-MSGC-MS Spectrum - 4,5-Dimethyl-2-propyloxazole EI-B (Non-derivatized)splash10-03kc-8900000000-c97d1cefd5a9b3958d992017-09-12HMDB team, MONA, MassBankView Spectrum
Experimental GC-MSGC-MS Spectrum - 4,5-Dimethyl-2-propyloxazole EI-B (Non-derivatized)splash10-03kc-8900000000-c97d1cefd5a9b3958d992018-05-18HMDB team, MONA, MassBankView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4,5-Dimethyl-2-propyloxazole GC-MS (Non-derivatized) - 70eV, Positivesplash10-0209-9700000000-44e1d9a320b151fa4a3c2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4,5-Dimethyl-2-propyloxazole 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 - 4,5-Dimethyl-2-propyloxazole 10V, Positive-QTOFsplash10-0006-0900000000-03fad7747227a52243cc2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 20V, Positive-QTOFsplash10-0006-2900000000-513ef35eaf5e41ddc80d2017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 40V, Positive-QTOFsplash10-0006-9000000000-cde26506c633130f40012017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 10V, Negative-QTOFsplash10-000i-2900000000-5e2a722fad098fd3e4682017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 20V, Negative-QTOFsplash10-000e-9400000000-6c1ff64123d7252130522017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 40V, Negative-QTOFsplash10-0006-9000000000-370bca8580a03e3fa9802017-09-01Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 10V, Positive-QTOFsplash10-0006-3900000000-f6c3f547ad9f3c5d16be2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 20V, Positive-QTOFsplash10-0007-9300000000-bd19e723b1de77cf7e0f2021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 40V, Positive-QTOFsplash10-0006-9000000000-379bf95c02817b38a6362021-09-23Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 10V, Negative-QTOFsplash10-000i-3900000000-25f47fbd171f8ffbe6bf2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 20V, Negative-QTOFsplash10-0006-9300000000-c66285439cc1e01b78fa2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4,5-Dimethyl-2-propyloxazole 40V, Negative-QTOFsplash10-02tc-9100000000-0d32792859ca6a5ea8942021-09-24Wishart 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
  • Membrane
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 IDFDB017022
KNApSAcK IDNot Available
Chemspider ID94452
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound104620
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1490441
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.. .