Record Information
Version 1.0
Update Date 1/22/2018 11:54:54 AM
Metabolite IDPAMDB110769
Identification
Name: 2-oxobutanoate
Description:A 2-oxo monocarboxylic acid anion that is the conjugate base of 2-oxobutanoic acid, obtained by deprotonation of the carboxy group.
Structure
Thumb
Synonyms:
  • 2-oxobutyrate
  • 2-ketobutyrate
  • 2-oxobutyric acid
  • α-oxobutyric acid
  • α-ketobutyrate
  • α-ketobutyric acid
  • 2-oxo-butyrate
  • 2-keto-butyrate
  • 2-ketobutyric acid
  • a-ketobutyric acid
Chemical Formula: C4H5O3
Average Molecular Weight: 101.08
Monoisotopic Molecular Weight: 102.0316940589
InChI Key: TYEYBOSBBBHJIV-UHFFFAOYSA-M
InChI: InChI=1S/C4H6O3/c1-2-3(5)4(6)7/h2H2,1H3,(H,6,7)/p-1
CAS number: 600-18-0
IUPAC Name:2-oxobutanoate
Traditional IUPAC Name: 2-oxobutanoic acid
SMILES:CCC(=O)C(=O)[O-]
Chemical Taxonomy
Taxonomy DescriptionThis compound belongs to the class of organic compounds known as short-chain keto acids and derivatives. These are keto acids with an alkyl chain the contains less than 6 carbon atoms.
Kingdom Organic compounds
Super ClassOrganic acids and derivatives
Class Keto acids and derivatives
Sub ClassShort-chain keto acids and derivatives
Direct Parent Short-chain keto acids and derivatives
Alternative Parents
Substituents
  • Short-chain keto acid
  • Alpha-keto acid
  • Alpha-hydroxy ketone
  • Ketone
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular Framework Aliphatic acyclic compounds
External Descriptors
Physical Properties
State: Solid
Charge:-1
Melting point: 33 °C
Experimental Properties:
PropertyValueReference
Melting Point33 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility119 mg/mLNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility79.2 mg/mLALOGPS
logP0.07ALOGPS
logP0.77ChemAxon
logS-0.11ALOGPS
pKa (Strongest Acidic)3.19ChemAxon
pKa (Strongest Basic)-9.7ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area54.37 Å2ChemAxon
Rotatable Bond Count2ChemAxon
Refractivity22.62 m3·mol-1ChemAxon
Polarizability9.2 Å3ChemAxon
Number of Rings0ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Biological Properties
Cellular Locations: Not Available
Reactions:
Pathways:
Spectra
Spectra:
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies)splash10-0gbj-1900000000-8daa299f5bc38a7f9b3eView in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOF (Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies)splash10-014s-1910000000-d01bcd7b41fdcc634eeaView in MoNA
GC-MSGC-MS Spectrum - GC-MS (1 MEOX; 1 TMS)splash10-000i-9200000000-3b3816ffee5771215904View in MoNA
GC-MSGC-MS Spectrum - GC-MS (1 MEOX; 1 TMS)splash10-000i-6910000000-5b264d5f7e53f3e80b12View in MoNA
GC-MSGC-MS Spectrum - GC-MS (2 TMS)splash10-001i-6950000000-db7f6a0f03a8cce59baeView in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MSNot Available
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Negative (Annotated)splash10-0pb9-9600000000-53ebb7164f74d7d92a4dView in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Negative (Annotated)splash10-0zfr-5900000000-1db864754705beb79b55View in MoNA
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Negative (Annotated)splash10-0udi-9800000000-5ba5b9ede5b1bc389b87View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF (UPLC Q-Tof Premier, Waters) , Negativesplash10-0udi-0900000000-bfdcad5bc3ed586bdedeView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0k9i-9400000000-0061f4635858d851f127View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4r-9100000000-b943445194fb5f8e3a0fView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-9000000000-bc5920b9bd140be6b06dView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0udi-5900000000-f7dfb4554f0b9e1499c9View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0a59-9200000000-e54106ad5bf45a9f072cView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9000000000-7bbba57578cf720974e3View in MoNA
1D NMR1H NMR SpectrumNot Available
1D NMR1H NMR SpectrumNot Available
1D NMR13C NMR SpectrumNot Available
2D NMR[1H,13C] 2D NMR SpectrumNot Available
References
References:
  • Sprague CL, Elfarra AA: Detection of carboxylic acids and inhibition of hippuric acid formation in rats treated with 3-butene-1,2-diol, a major metabolite of 1,3-butadiene. Drug Metab Dispos. 2003 Aug;31(8):986-92. [12867486 ]
  • Yaegaki K, Sanada K: Biochemical and clinical factors influencing oral malodor in periodontal patients. J Periodontol. 1992 Sep;63(9):783-9. [1474480 ]
  • Yaegaki K, Sanada K: Effects of a two-phase oil-water mouthwash on halitosis. Clin Prev Dent. 1992 Jan-Feb;14(1):5-9. [1499240 ]
  • Yang W, Roth KS: Defect in alpha-ketobutyrate metabolism: a new inborn error. Clin Chim Acta. 1985 Jan 30;145(2):173-82. [3918815 ]
Synthesis Reference: Figge, Rainer; Lux, Fabien; Raynaud, Celine; Soucaille, Philippe. Production of a-ketobutyrate by engineered Escherichia coli.PCT Int. Appl. (2006), 31pp.
Material Safety Data Sheet (MSDS) Not Available
External Links:
ResourceLink
CAS600-18-0
ChEBI16763
ChemSpider2829426
HMDBHMDB00005
IAF126033889
KEGGC00109
MetaboLightsMTBLC16763
PubChem3593277