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Identification Taxonomy Ontology Physical properties Spectra Biological properties Concentrations Links References XML

Record Information

Version

5.0

Status

Expected but not Quantified

Creation Date

2012-09-11 23:06:58 UTC

Update Date

2023-02-21 17:26:07 UTC

HMDB ID

HMDB0037858

Secondary Accession Numbers

HMDB37858

Metabolite Identification

Common Name

2-Ethyl-5-methyloxazole

Description

2-Ethyl-5-methyloxazole belongs to the class of organic compounds known as 2,5-disubstituted oxazoles. 2,5-disubstituted oxazoles are compounds containing an oxazole ring substituted at positions 2 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-5-methyloxazole 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 2-ethyl-5-methyloxazole a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 2-Ethyl-5-methyloxazole.

Structure

MOL 3D MOL SDF 3D SDF PDB 3D PDB SMILES InChI

View in JSmol View NMR Assignments View Stereo Labels

Synonyms

Not Available

Chemical Formula

C₆H₉NO

Average Molecular Weight

111.1418

Monoisotopic Molecular Weight

111.068413915

IUPAC Name

2-ethyl-5-methyl-1,3-oxazole

Traditional Name

2-ethyl-5-methyl-1,3-oxazole

CAS Registry Number

42463-54-7

SMILES

CCC1=NC=C(C)O1

InChI Identifier

InChI=1S/C6H9NO/c1-3-6-7-4-5(2)8-6/h4H,3H2,1-2H3

InChI Key

ADIDFXCLFPHHLE-UHFFFAOYSA-N

Chemical Taxonomy

Description

Belongs to the class of organic compounds known as 2,5-disubstituted oxazoles. 2,5-Disubstituted oxazoles are compounds containing an oxazole ring substituted at positions 2 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.

Kingdom

Organic compounds

Super Class

Organoheterocyclic compounds

Class

Azoles

Sub Class

Oxazoles

Direct Parent

2,5-disubstituted oxazoles

Alternative Parents

Substituents

2,5-disubstituted 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 Framework

Aromatic heteromonocyclic compounds

External Descriptors

Not Available

Ontology

Physiological effect

Not Available

Disposition

Biological location

Cellular substructure

Extracellular (HMDB: HMDB0037858)
Cytoplasm (HMDB: HMDB0037858)

Route of exposure

Enteral

Ingestion (HMDB: HMDB0037858)

Source

Exogenous

Food

Food (HMDB: HMDB0037858)

Coffee and coffee product

Coffee

Arabica coffee (FooDB: FOOD00059)
Robusta coffee (FooDB: FOOD00060)

Coffee and coffee products (FooDB: FOOD00861)

Endogenous

Plant

Coffea (HMDB: HMDB0037858)

Process

Not Available

Role

Biological role

Nutrient (HMDB: HMDB0037858)

Physical Properties

State

Not Available

Experimental Molecular Properties

Property	Value	Reference
Melting Point	Not Available	Not Available
Boiling Point	131.00 to 132.00 °C. @ 760.00 mm Hg (est)	The Good Scents Company Information System
Water Solubility	3128 mg/L @ 25 °C (est)	The Good Scents Company Information System
LogP	1.509 (est)	The Good Scents Company Information System

Experimental Chromatographic Properties

Not Available

Predicted Molecular Properties

Property	Value	Source
Water Solubility	15 g/L	ALOGPS
logP	1.47	ALOGPS
logP	0.94	ChemAxon
logS	-0.87	ALOGPS
pKa (Strongest Basic)	1.99	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	1	ChemAxon
Hydrogen Donor Count	0	ChemAxon
Polar Surface Area	26.03 Å²	ChemAxon
Rotatable Bond Count	1	ChemAxon
Refractivity	30.98 m³·mol⁻¹	ChemAxon
Polarizability	12.5 Å³	ChemAxon
Number of Rings	1	ChemAxon
Bioavailability	Yes	ChemAxon
Rule of Five	Yes	ChemAxon
Ghose Filter	No	ChemAxon
Veber's Rule	Yes	ChemAxon
MDDR-like Rule	No	ChemAxon

Predicted Chromatographic Properties

Predicted Collision Cross Sections

Predictor	Adduct Type	CCS Value (Å²)	Reference
DarkChem	[M+H]+	121.762	31661259
DarkChem	[M-H]-	119.785	31661259
DeepCCS	[M+H]+	130.232	30932474
DeepCCS	[M-H]-	128.13	30932474
DeepCCS	[M-2H]-	164.011	30932474
DeepCCS	[M+Na]+	138.759	30932474
AllCCS	[M+H]+	123.6	32859911
AllCCS	[M+H-H2O]+	118.8	32859911
AllCCS	[M+NH4]+	128.1	32859911
AllCCS	[M+Na]+	129.4	32859911
AllCCS	[M-H]-	123.7	32859911
AllCCS	[M+Na-2H]-	126.4	32859911
AllCCS	[M+HCOO]-	129.4	32859911

Predicted Kovats Retention Indices

Underivatized

Metabolite	SMILES	Kovats RI Value	Column Type	Reference
2-Ethyl-5-methyloxazole	CCC1=NC=C(C)O1	1179.9	Standard polar	33892256
2-Ethyl-5-methyloxazole	CCC1=NC=C(C)O1	846.6	Standard non polar	33892256
2-Ethyl-5-methyloxazole	CCC1=NC=C(C)O1	828.8	Semi standard non polar	33892256

Spectra

GC-MS Spectra

Spectrum Type	Description	Splash Key	Deposition Date	Source	View
Predicted GC-MS	Predicted GC-MS Spectrum - 2-Ethyl-5-methyloxazole GC-MS (Non-derivatized) - 70eV, Positive	splash10-03dj-9300000000-9bc859d2b975e2ecfaad	2017-09-01	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - 2-Ethyl-5-methyloxazole GC-MS (Non-derivatized) - 70eV, Positive	Not Available	2021-10-12	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - 2-Ethyl-5-methyloxazole GC-MS (Non-derivatized) - 70eV, Positive	Not Available	2021-10-12	Wishart Lab	View Spectrum

MS/MS Spectra

Spectrum Type	Description	Splash Key	Deposition Date	Source	View
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 10V, Positive-QTOF	splash10-03di-0900000000-a57fd0a9d574ea578e25	2016-08-01	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 20V, Positive-QTOF	splash10-03di-5900000000-423d2ee6c5d095cd92d9	2016-08-01	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 40V, Positive-QTOF	splash10-0006-9000000000-0a6a67ed59387ded6d2c	2016-08-01	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 10V, Negative-QTOF	splash10-0ik9-6900000000-463527ecca5533d4789c	2016-08-03	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 20V, Negative-QTOF	splash10-02t9-9400000000-3bb3c0e1ee3d53463c56	2016-08-03	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 40V, Negative-QTOF	splash10-0udi-9000000000-368bbea9f1a3c2294f7b	2016-08-03	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 10V, Negative-QTOF	splash10-03di-0900000000-f2478833497381c37882	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 20V, Negative-QTOF	splash10-0nmi-9300000000-95f181214e46b4a0b9bf	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 40V, Negative-QTOF	splash10-0udi-9000000000-95d48f0d58bc82e6b563	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 10V, Positive-QTOF	splash10-03di-5900000000-dd8804d995c3c87db45c	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 20V, Positive-QTOF	splash10-03dl-9300000000-72b3c6334248d67ced33	2021-09-22	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 2-Ethyl-5-methyloxazole 40V, Positive-QTOF	splash10-0frf-9000000000-d59f204176962d5c4e8e	2021-09-22	Wishart Lab	View Spectrum

NMR Spectra

Spectrum Type	Description	Deposition Date	Source	View
Predicted 1D NMR	¹H NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-09-24	Wishart Lab	View Spectrum

IR Spectra

Spectrum Type	Description	Deposition Date	Source	View
Predicted IR Spectrum	IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+H]+)	2023-02-04	FELIX lab	View Spectrum
Predicted IR Spectrum	IR Ion Spectrum (Predicted IRIS Spectrum, Adduct: [M+Na]+)	2023-02-04	FELIX lab	View Spectrum

Biological Properties

Cellular Locations

Cytoplasm
Extracellular

Biospecimen Locations

Not Available

Tissue Locations

Not Available

Pathways

Not Available

Name	SMPDB/PathBank	KEGG

Normal Concentrations

Not Available

Abnormal Concentrations

Not Available

Associated Disorders and Diseases

Disease References

None

Associated OMIM IDs

None

External Links

DrugBank ID

Not Available

Phenol Explorer Compound ID

Not Available

FooDB ID

FDB017011

KNApSAcK ID

Not Available

Chemspider ID

460510

KEGG Compound ID

Not Available

BioCyc ID

Not Available

BiGG ID

Not Available

Wikipedia Link

Not Available

METLIN ID

Not Available

PubChem Compound

528403

PDB ID

Not Available

ChEBI ID

Not Available

Food Biomarker Ontology

Not Available

VMH ID

Not Available

MarkerDB ID

Not Available

Good Scents ID

rw1118751

References

Synthesis Reference

Not Available

Material Safety Data Sheet (MSDS)

Not Available

General References

(). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .

Showing metabocard for 2-Ethyl-5-methyloxazole (HMDB0037858)

MOL for HMDB0037858 (2-Ethyl-5-methyloxazole)

3D MOL for HMDB0037858 (2-Ethyl-5-methyloxazole)

3D SDF for HMDB0037858 (2-Ethyl-5-methyloxazole)

3D-SDF for HMDB0037858 (2-Ethyl-5-methyloxazole)

PDB for HMDB0037858 (2-Ethyl-5-methyloxazole)

3D PDB for HMDB0037858 (2-Ethyl-5-methyloxazole)

SMILES for HMDB0037858 (2-Ethyl-5-methyloxazole)

INCHI for HMDB0037858 (2-Ethyl-5-methyloxazole)

Structure for HMDB0037858 (2-Ethyl-5-methyloxazole)

3D Structure for HMDB0037858 (2-Ethyl-5-methyloxazole)

Predicted Collision Cross Sections

Predicted Kovats Retention Indices

Underivatized

GC-MS Spectra

MS/MS Spectra

NMR Spectra

IR Spectra