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Record Information

Version

5.0

Status

Expected but not Quantified

Creation Date

2012-09-11 22:24:34 UTC

Update Date

2022-03-07 02:55:13 UTC

HMDB ID

HMDB0037167

Secondary Accession Numbers

HMDB37167

Metabolite Identification

Common Name

3-Ethyl-5-methyl-1,2-cyclopentanedione

Description

3-Ethyl-5-methyl-1,2-cyclopentanedione belongs to the class of organic compounds known as cyclic ketones. These are organic compounds containing a ketone that is conjugated to a cyclic moiety. 3-Ethyl-5-methyl-1,2-cyclopentanedione is a malty tasting compound. 3-Ethyl-5-methyl-1,2-cyclopentanedione 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 3-ethyl-5-methyl-1,2-cyclopentanedione a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 3-Ethyl-5-methyl-1,2-cyclopentanedione.

Structure

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

View in JSmol View NMR Assignments View Stereo Labels

Synonyms

Value	Source
3-Ethyl-2-hydroxy-5-methyl-2-cyclopenten-1-one	HMDB
5-Ethyl-2-hydroxy-3-methyl-2-cyclopenten-1-one, 9ci	HMDB
FEMA 3454	HMDB

Chemical Formula

C₈H₁₂O₂

Average Molecular Weight

140.1797

Monoisotopic Molecular Weight

140.083729628

IUPAC Name

3-ethyl-5-methylcyclopentane-1,2-dione

Traditional Name

3-ethyl-5-methylcyclopentane-1,2-dione

CAS Registry Number

53263-58-4

SMILES

CCC1CC(C)C(=O)C1=O

InChI Identifier

InChI=1S/C8H12O2/c1-3-6-4-5(2)7(9)8(6)10/h5-6H,3-4H2,1-2H3

InChI Key

CMIUAOYKUMNWLW-UHFFFAOYSA-N

Chemical Taxonomy

Description

Belongs to the class of organic compounds known as cyclic ketones. These are organic compounds containing a ketone that is conjugated to a cyclic moiety.

Kingdom

Organic compounds

Super Class

Organic oxygen compounds

Class

Organooxygen compounds

Sub Class

Carbonyl compounds

Direct Parent

Cyclic ketones

Alternative Parents

Substituents

Cyclic ketone
Organic oxide
Hydrocarbon derivative
Aliphatic homomonocyclic compound

Molecular Framework

Aliphatic homomonocyclic compounds

External Descriptors

Not Available

Ontology

Physiological effect

Organoleptic effect

Odor

Malty

Disposition

Biological location

Cellular substructure

Extracellular (HMDB: HMDB0037167)
Cytoplasm (HMDB: HMDB0037167)

Route of exposure

Enteral

Ingestion (HMDB: HMDB0037167)

Source

Exogenous

Exogenous (HMDB: HMDB0037167)

Food

Food (HMDB: HMDB0037167)

Coffee and coffee product

Coffee

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

Coffee and coffee products (FooDB: FOOD00861)

Endogenous

Plant

Coffea (HMDB: HMDB0037167)

Process

Not Available

Role

Industrial application

Food and nutrition

Food additive

Flavoring agent

Flavoring Agent (HMDB: HMDB0037167)

Biological role

Nutrient (HMDB: HMDB0037167)

Physical Properties

State

Not Available

Experimental Molecular Properties

Property	Value	Reference
Melting Point	Not Available	Not Available
Boiling Point	Not Available	Not Available
Water Solubility	Not Available	Not Available
LogP	Not Available	Not Available

Experimental Chromatographic Properties

Not Available

Predicted Molecular Properties

Property	Value	Source
Water Solubility	8.44 g/L	ALOGPS
logP	1.55	ALOGPS
logP	2.42	ChemAxon
logS	-1.2	ALOGPS
pKa (Strongest Acidic)	16.61	ChemAxon
pKa (Strongest Basic)	-8.7	ChemAxon
Physiological Charge	0	ChemAxon
Hydrogen Acceptor Count	2	ChemAxon
Hydrogen Donor Count	0	ChemAxon
Polar Surface Area	34.14 Å²	ChemAxon
Rotatable Bond Count	1	ChemAxon
Refractivity	38.14 m³·mol⁻¹	ChemAxon
Polarizability	15.25 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]+	132.277	31661259
DarkChem	[M-H]-	127.134	31661259
DeepCCS	[M+H]+	132.196	30932474
DeepCCS	[M-H]-	128.64	30932474
DeepCCS	[M-2H]-	165.786	30932474
DeepCCS	[M+Na]+	140.945	30932474
AllCCS	[M+H]+	129.4	32859911
AllCCS	[M+H-H2O]+	124.9	32859911
AllCCS	[M+NH4]+	133.7	32859911
AllCCS	[M+Na]+	134.9	32859911
AllCCS	[M-H]-	131.2	32859911
AllCCS	[M+Na-2H]-	133.0	32859911
AllCCS	[M+HCOO]-	135.1	32859911

Predicted Kovats Retention Indices

Underivatized

Metabolite	SMILES	Kovats RI Value	Column Type	Reference
3-Ethyl-5-methyl-1,2-cyclopentanedione	CCC1CC(C)C(=O)C1=O	1765.7	Standard polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione	CCC1CC(C)C(=O)C1=O	1116.2	Standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione	CCC1CC(C)C(=O)C1=O	1153.2	Semi standard non polar	33892256

Derivatized

Derivative Name / Structure	SMILES	Kovats RI Value	Column Type	Reference
3-Ethyl-5-methyl-1,2-cyclopentanedione,1TMS,isomer #1	CCC1CC(C)=C(O[Si](C)(C)C)C1=O	1290.7	Semi standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,1TMS,isomer #1	CCC1CC(C)=C(O[Si](C)(C)C)C1=O	1280.1	Standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,1TMS,isomer #2	CCC1=C(O[Si](C)(C)C)C(=O)C(C)C1	1295.4	Semi standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,1TMS,isomer #2	CCC1=C(O[Si](C)(C)C)C(=O)C(C)C1	1276.2	Standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,2TMS,isomer #1	CCC1=C(O[Si](C)(C)C)C(O[Si](C)(C)C)=C(C)C1	1470.0	Semi standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,2TMS,isomer #1	CCC1=C(O[Si](C)(C)C)C(O[Si](C)(C)C)=C(C)C1	1555.6	Standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,1TBDMS,isomer #1	CCC1CC(C)=C(O[Si](C)(C)C(C)(C)C)C1=O	1527.7	Semi standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,1TBDMS,isomer #1	CCC1CC(C)=C(O[Si](C)(C)C(C)(C)C)C1=O	1496.8	Standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,1TBDMS,isomer #2	CCC1=C(O[Si](C)(C)C(C)(C)C)C(=O)C(C)C1	1531.0	Semi standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,1TBDMS,isomer #2	CCC1=C(O[Si](C)(C)C(C)(C)C)C(=O)C(C)C1	1489.5	Standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,2TBDMS,isomer #1	CCC1=C(O[Si](C)(C)C(C)(C)C)C(O[Si](C)(C)C(C)(C)C)=C(C)C1	1928.8	Semi standard non polar	33892256
3-Ethyl-5-methyl-1,2-cyclopentanedione,2TBDMS,isomer #1	CCC1=C(O[Si](C)(C)C(C)(C)C)C(O[Si](C)(C)C(C)(C)C)=C(C)C1	1902.5	Standard non polar	33892256

Spectra

GC-MS Spectra

Spectrum Type	Description	Splash Key	Deposition Date	Source	View
Predicted GC-MS	Predicted GC-MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione GC-MS (Non-derivatized) - 70eV, Positive	splash10-056r-9300000000-7cbadbf2097b06912bfb	2017-09-01	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione GC-MS (Non-derivatized) - 70eV, Positive	Not Available	2021-10-12	Wishart Lab	View Spectrum
Predicted GC-MS	Predicted GC-MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 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 - 3-Ethyl-5-methyl-1,2-cyclopentanedione 10V, Positive-QTOF	splash10-0006-0900000000-f2c25705175a4254be79	2017-09-01	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 20V, Positive-QTOF	splash10-006x-9500000000-045aeeb27a9a7d8378bb	2017-09-01	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 40V, Positive-QTOF	splash10-0k9f-9000000000-5145be9c4c07c396b7c8	2017-09-01	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 10V, Negative-QTOF	splash10-000i-0900000000-08dc296f342ccb0213e9	2017-09-01	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 20V, Negative-QTOF	splash10-000i-0900000000-7b16b8c2665d24538ec3	2017-09-01	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 40V, Negative-QTOF	splash10-0api-9300000000-013e70f7f2287bad7e27	2017-09-01	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 10V, Negative-QTOF	splash10-000i-0900000000-9e639b46825e6df52697	2021-09-24	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 20V, Negative-QTOF	splash10-03e9-9700000000-6b487dfef73fed4dac7a	2021-09-24	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 40V, Negative-QTOF	splash10-0a4i-9100000000-15371cd5388db016bbbc	2021-09-24	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 10V, Positive-QTOF	splash10-0006-6900000000-68d741e77871c6ecdf96	2021-09-24	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 20V, Positive-QTOF	splash10-0a4l-9200000000-06cc7a157a6b34023af1	2021-09-24	Wishart Lab	View Spectrum
Predicted LC-MS/MS	Predicted LC-MS/MS Spectrum - 3-Ethyl-5-methyl-1,2-cyclopentanedione 40V, Positive-QTOF	splash10-0a4l-9100000000-8d44d58c43a5db31924d	2021-09-24	Wishart Lab	View Spectrum

NMR Spectra

Spectrum Type	Description	Deposition Date	Source	View
Predicted 1D NMR	¹³C NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 100 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 1000 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 200 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 300 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 400 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 500 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 600 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 700 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 800 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹³C NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-09-25	Wishart Lab	View Spectrum
Predicted 1D NMR	¹H NMR Spectrum (1D, 900 MHz, D₂O, predicted)	2021-09-25	Wishart 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

FDB016163

KNApSAcK ID

Not Available

Chemspider ID

32700053

KEGG Compound ID

Not Available

BioCyc ID

Not Available

BiGG ID

Not Available

Wikipedia Link

Not Available

METLIN ID

Not Available

PubChem Compound

15825502

PDB ID

Not Available

ChEBI ID

Not Available

Food Biomarker Ontology

Not Available

VMH ID

Not Available

MarkerDB ID

Not Available

Good Scents ID

Not Available

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 3-Ethyl-5-methyl-1,2-cyclopentanedione (HMDB0037167)

MOL for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

3D MOL for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

3D SDF for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

3D-SDF for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

PDB for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

3D PDB for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

SMILES for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

INCHI for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

Structure for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

3D Structure for HMDB0037167 (3-Ethyl-5-methyl-1,2-cyclopentanedione)

Predicted Collision Cross Sections

Predicted Kovats Retention Indices

Underivatized

Derivatized

GC-MS Spectra

MS/MS Spectra

NMR Spectra