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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:44:03 UTC
Update Date2023-02-21 17:20:49 UTC
HMDB IDHMDB0031559
Secondary Accession Numbers
  • HMDB31559
Metabolite Identification
Common Name4-Methyl-2,3-pentanedione
Description4-Methyl-2,3-pentanedione belongs to the class of organic compounds known as alpha-diketones. These are organic compounds containing two ketone groups on two adjacent carbon atoms. 4-Methyl-2,3-pentanedione is a sweet, buttery, and creamy tasting compound. 4-Methyl-2,3-pentanedione has been detected, but not quantified in, several different foods, such as robusta coffees (Coffea canephora), coffee and coffee products, alcoholic beverages, crustaceans, and arabica coffees (Coffea arabica). This could make 4-methyl-2,3-pentanedione a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 4-Methyl-2,3-pentanedione.
Structure
Data?1677000049
Synonyms
ValueSource
4-Methylpentane-2,3-dioneHMDB
Acetyl isobutyrylHMDB
AcetylisobutyrylHMDB
FEMA 2730HMDB
Isopropyl methyl diketoneHMDB
IsopropylmethylglyoxalHMDB
Methyl isopropyl diketoneHMDB
Chemical FormulaC6H10O2
Average Molecular Weight114.1424
Monoisotopic Molecular Weight114.068079564
IUPAC Name4-methylpentane-2,3-dione
Traditional Name4-methylpentane-2,3-dione
CAS Registry Number7493-58-5
SMILES
CC(C)C(=O)C(C)=O
InChI Identifier
InChI=1S/C6H10O2/c1-4(2)6(8)5(3)7/h4H,1-3H3
InChI KeyJENYBWHRLYZSSZ-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as alpha-diketones. These are organic compounds containing two ketone groups on two adjacent carbon atoms.
KingdomOrganic compounds
Super ClassOrganic oxygen compounds
ClassOrganooxygen compounds
Sub ClassCarbonyl compounds
Direct ParentAlpha-diketones
Alternative Parents
Substituents
  • Alpha-diketone
  • Organic oxide
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External DescriptorsNot Available
Ontology
Physiological effect
Disposition
ProcessNot Available
Role
Physical Properties
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting Point-2.40 °C. @ 760.00 mm HgThe Good Scents Company Information System
Boiling Point116.00 to 118.00 °C. @ 760.00 mm HgThe Good Scents Company Information System
Water Solubility244200 mg/L @ 25 °C (est)The Good Scents Company Information System
LogP-0.477 (est)The Good Scents Company Information System
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility24.2 g/LALOGPS
logP0.7ALOGPS
logP1.64ChemAxon
logS-0.67ALOGPS
pKa (Strongest Acidic)16.21ChemAxon
pKa (Strongest Basic)-8.5ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count2ChemAxon
Hydrogen Donor Count0ChemAxon
Polar Surface Area34.14 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity30.74 m³·mol⁻¹ChemAxon
Polarizability12.15 ųChemAxon
Number of Rings0ChemAxon
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]+124.33331661259
DarkChem[M-H]-120.26731661259
DeepCCS[M+H]+129.61230932474
DeepCCS[M-H]-127.60430932474
DeepCCS[M-2H]-163.6730932474
DeepCCS[M+Na]+138.26230932474
AllCCS[M+H]+127.132859911
AllCCS[M+H-H2O]+122.932859911
AllCCS[M+NH4]+131.032859911
AllCCS[M+Na]+132.132859911
AllCCS[M-H]-126.632859911
AllCCS[M+Na-2H]-129.932859911
AllCCS[M+HCOO]-133.632859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
4-Methyl-2,3-pentanedioneCC(C)C(=O)C(C)=O1069.1Standard polar33892256
4-Methyl-2,3-pentanedioneCC(C)C(=O)C(C)=O692.1Standard non polar33892256
4-Methyl-2,3-pentanedioneCC(C)C(=O)C(C)=O769.1Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
4-Methyl-2,3-pentanedione,1TMS,isomer #1CC(=O)C(O[Si](C)(C)C)=C(C)C1042.0Semi standard non polar33892256
4-Methyl-2,3-pentanedione,1TMS,isomer #1CC(=O)C(O[Si](C)(C)C)=C(C)C1028.3Standard non polar33892256
4-Methyl-2,3-pentanedione,1TMS,isomer #2C=C(O[Si](C)(C)C)C(=O)C(C)C1025.3Semi standard non polar33892256
4-Methyl-2,3-pentanedione,1TMS,isomer #2C=C(O[Si](C)(C)C)C(=O)C(C)C1033.3Standard non polar33892256
4-Methyl-2,3-pentanedione,2TMS,isomer #1C=C(O[Si](C)(C)C)C(O[Si](C)(C)C)=C(C)C1227.7Semi standard non polar33892256
4-Methyl-2,3-pentanedione,2TMS,isomer #1C=C(O[Si](C)(C)C)C(O[Si](C)(C)C)=C(C)C1210.0Standard non polar33892256
4-Methyl-2,3-pentanedione,1TBDMS,isomer #1CC(=O)C(O[Si](C)(C)C(C)(C)C)=C(C)C1258.9Semi standard non polar33892256
4-Methyl-2,3-pentanedione,1TBDMS,isomer #1CC(=O)C(O[Si](C)(C)C(C)(C)C)=C(C)C1238.8Standard non polar33892256
4-Methyl-2,3-pentanedione,1TBDMS,isomer #2C=C(O[Si](C)(C)C(C)(C)C)C(=O)C(C)C1253.6Semi standard non polar33892256
4-Methyl-2,3-pentanedione,1TBDMS,isomer #2C=C(O[Si](C)(C)C(C)(C)C)C(=O)C(C)C1218.7Standard non polar33892256
4-Methyl-2,3-pentanedione,2TBDMS,isomer #1C=C(O[Si](C)(C)C(C)(C)C)C(O[Si](C)(C)C(C)(C)C)=C(C)C1647.3Semi standard non polar33892256
4-Methyl-2,3-pentanedione,2TBDMS,isomer #1C=C(O[Si](C)(C)C(C)(C)C)C(O[Si](C)(C)C(C)(C)C)=C(C)C1641.0Standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 4-Methyl-2,3-pentanedione GC-MS (Non-derivatized) - 70eV, Positivesplash10-006x-9000000000-b21a4e12c58b6f8ac5a72017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4-Methyl-2,3-pentanedione 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-Methyl-2,3-pentanedione 10V, Positive-QTOFsplash10-014j-7900000000-4d811288639a4663c68c2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 20V, Positive-QTOFsplash10-00kb-9300000000-6cf30ee1a60b9db8138f2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 40V, Positive-QTOFsplash10-0006-9000000000-ccd5020cf0ced601e0472015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 10V, Negative-QTOFsplash10-03di-1900000000-f264a18a51fea16e23402015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 20V, Negative-QTOFsplash10-03k9-9600000000-9589249a8dbc7f024bdd2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 40V, Negative-QTOFsplash10-0592-9000000000-038352b502a4b747cd942015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 10V, Negative-QTOFsplash10-03k9-5900000000-2b1aabc8363d31921a6b2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 20V, Negative-QTOFsplash10-03di-9500000000-e58445c28e31b3794b6a2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 40V, Negative-QTOFsplash10-052f-9000000000-642e748e087dd9cbc7372021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 10V, Positive-QTOFsplash10-0007-9000000000-2646799b30311fc485062021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 20V, Positive-QTOFsplash10-006x-9000000000-8839be08eaab3d9c71ce2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4-Methyl-2,3-pentanedione 40V, Positive-QTOFsplash10-0006-9000000000-868a9e3d55bae3edaf552021-09-22Wishart 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 IDFDB008172
KNApSAcK IDNot Available
Chemspider ID22540
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound24115
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1032821
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.. .