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Record Information
Creation Date2016-09-30 22:26:43 UTC
Update Date2020-06-04 20:52:18 UTC
Secondary Accession Numbers
  • BMDB00208
Metabolite Identification
Common NameOxoglutaric acid
DescriptionOxoglutaric acid, also known as oxoglutarate or alpha-ketoglutarate, belongs to the class of organic compounds known as gamma-keto acids and derivatives. These are organic compounds containing an aldehyde substituted with a keto group on the C4 carbon atom. Oxoglutaric acid exists as a solid, possibly soluble (in water), and an extremely weak basic (essentially neutral) compound (based on its pKa) molecule. Oxoglutaric acid exists in all living species, ranging from bacteria to humans. Oxoglutaric acid is a potentially toxic compound. Oxoglutaric acid has been found to be associated with several diseases known as schizophrenia, eosinophilic esophagitis, amish lethal microcephaly, and anoxia; also oxoglutaric acid has been linked to the inborn metabolic disorders including d-2-hydroxyglutaric aciduria.
2-Ketoglutaric acidChEBI
alpha-Ketoglutaric acidChEBI
a-Ketoglutaric acidGenerator
Α-ketoglutaric acidGenerator
2-oxo-1,5-Pentanedioic acidHMDB
2-Oxoglutaric acidHMDB
2-Oxopentanedioic acidHMDB
Oxogluric acidHMDB
2 Oxoglutaric acidHMDB
Ketoglutaric acidHMDB
alpha Ketoglutaric acidHMDB
2 Ketoglutaric acidHMDB
alpha KetoglutarateHMDB
alpha OxoglutarateHMDB
2 KetoglutarateHMDB
2 OxoglutarateHMDB
alpha-Oxoglutaric acidHMDB
alpha-Oxopentanedioic acidHMDB
alpha-Keto-glutaric acidHMDB
Α-oxoglutaric acidHMDB
Α-oxopentanedioic acidHMDB
Α-keto-glutaric acidHMDB
Chemical FormulaC5H6O5
Average Molecular Weight146.0981
Monoisotopic Molecular Weight146.021523302
IUPAC Name2-oxopentanedioic acid
Traditional Nameoxoglutarate
CAS Registry Number328-50-7
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as gamma-keto acids and derivatives. These are organic compounds containing an aldehyde substituted with a keto group on the C4 carbon atom.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassKeto acids and derivatives
Sub ClassGamma-keto acids and derivatives
Direct ParentGamma-keto acids and derivatives
Alternative Parents
  • Gamma-keto acid
  • Short-chain keto acid
  • Dicarboxylic acid or derivatives
  • Alpha-keto acid
  • Alpha-hydroxy ketone
  • Ketone
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Carbonyl group
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physical Properties
Experimental Properties
Melting Point115.5 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility541.5 mg/mLNot Available
LogPNot AvailableNot Available
Predicted Properties
pKa (Strongest Acidic)2.66ChemAxon
pKa (Strongest Basic)-9.7ChemAxon
Physiological Charge-2ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area91.67 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity28.88 m³·mol⁻¹ChemAxon
Polarizability12.17 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash KeyView
Detected and Quantified277 uM details
Detected and Quantified240 uM details
Detected and Quantified90 uM details
Detected and Quantified102 uM details
Detected and Quantified70 - 156 uM details
Detected but not QuantifiedNot Applicable details
Detected but not QuantifiedNot Applicable details
Detected and Quantified37 - 156 uM details
Detected and Quantified104 +/- 7 uM details
Detected and Quantified112 +/- 7 uM details
Detected and Quantified103 +/- 3 uM details
Detected and Quantified109 +/- 6 uM details
Detected and Quantified117 +/- 19 uM details
Detected and Quantified111 +/- 16 uM details
Detected and Quantified117 +/- 17 uM details
DrugBank IDDB08845
Phenol Explorer Compound IDNot Available
FoodDB IDFDB003361
KNApSAcK IDC00000769
Chemspider ID50
KEGG Compound IDC00026
BiGG ID33565
Wikipedia LinkAlpha-Ketoglutaric_acid
PubChem Compound51
PDB IDNot Available
ChEBI ID30915
Synthesis ReferenceTanaka, Katsunobu; kimura, Kazu; Yamaguchi, Ken. Fermentative production of a-oxoglutaric acid. U.S. (1973), 4 pp.
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Faulkner A, Pollock HT: Changes in the concentration of metabolites in milk from cows fed on diets supplemented with soyabean oil or fatty acids. J Dairy Res. 1989 May;56(2):179-83. [PubMed:2760296 ]
  2. Hurtaud C, Rulquin H, Verite R: Effects of graded duodenal infusions of glucose on yield and composition of milk from dairy cows. 1. Diets based on corn silage. J Dairy Sci. 1998 Dec;81(12):3239-47. doi: 10.3168/jds.S0022-0302(98)75888-6. [PubMed:9891269 ]
  3. Hurtaud C, Lemosquet S, Rulquin H: Effect of graded duodenal infusions of glucose on yield and composition of milk from dairy cows. 2. Diets based on grass silage. J Dairy Sci. 2000 Dec;83(12):2952-62. doi: 10.3168/jds.S0022-0302(00)75195-2. [PubMed:11132867 ]
  4. Klein MS, Buttchereit N, Miemczyk SP, Immervoll AK, Louis C, Wiedemann S, Junge W, Thaller G, Oefner PJ, Gronwald W: NMR metabolomic analysis of dairy cows reveals milk glycerophosphocholine to phosphocholine ratio as prognostic biomarker for risk of ketosis. J Proteome Res. 2012 Feb 3;11(2):1373-81. doi: 10.1021/pr201017n. Epub 2011 Dec 9. [PubMed:22098372 ]
  5. Melzer N, Wittenburg D, Hartwig S, Jakubowski S, Kesting U, Willmitzer L, Lisec J, Reinsch N, Repsilber D: Investigating associations between milk metabolite profiles and milk traits of Holstein cows. J Dairy Sci. 2013 Mar;96(3):1521-34. doi: 10.3168/jds.2012-5743. [PubMed:23438684 ]
  6. Buitenhuis AJ, Sundekilde UK, Poulsen NA, Bertram HC, Larsen LB, Sorensen P: Estimation of genetic parameters and detection of quantitative trait loci for metabolites in Danish Holstein milk. J Dairy Sci. 2013 May;96(5):3285-95. doi: 10.3168/jds.2012-5914. Epub 2013 Mar 15. [PubMed:23497994 ]
  7. O'Callaghan TF, Vazquez-Fresno R, Serra-Cayuela A, Dong E, Mandal R, Hennessy D, McAuliffe S, Dillon P, Wishart DS, Stanton C, Ross RP: Pasture Feeding Changes the Bovine Rumen and Milk Metabolome. Metabolites. 2018 Apr 6;8(2). pii: metabo8020027. doi: 10.3390/metabo8020027. [PubMed:29642378 ]
  8. Antunes-Fernandes EC, van Gastelen S, Dijkstra J, Hettinga KA, Vervoort J: Milk metabolome relates enteric methane emission to milk synthesis and energy metabolism pathways. J Dairy Sci. 2016 Aug;99(8):6251-6262. doi: 10.3168/jds.2015-10248. Epub 2016 May 26. [PubMed:27236769 ]
  9. Kurt J. Boudonck, Matthew W. Mitchell, Jacob Wulff and John A. Ryals (2009). Kurt J. Boudonck, Matthew W. Mitchell, Jacob Wulff and John A. Ryals. Characterization of the biochemical variability of bovine milk using metabolomics. Metabolomics (2009) 5:375?386. Metabolomics.
  10. A. Foroutan et al. (2019). A. Foroutan et al. The Chemical Composition of Commercial Cow's Milk (in preparation). Journal of Agricultural and Food Chemistry.