Name2-Oxobutanoic Acid
Accession NumberDB04553  (EXPT00126)
TypeSmall Molecule
DescriptionNot Available
SynonymsNot Available
External IDs FEMA NO. 3723 / NSC-60533
Product Ingredients Not Available
Approved Prescription ProductsNot Available
Approved Generic Prescription ProductsNot Available
Approved Over the Counter ProductsNot Available
Unapproved/Other Products Not Available
International BrandsNot Available
Brand mixturesNot Available
CategoriesNot Available
CAS number600-18-0
WeightAverage: 102.0886
Monoisotopic: 102.031694058
Chemical FormulaC4H6O3
2-oxobutanoic acid
IndicationNot Available
Structured Indications Not Available
PharmacodynamicsNot Available
Mechanism of action
TargetKindPharmacological actionActionsOrganismUniProt ID
1-aminocyclopropane-1-carboxylate deaminaseProteinunknownNot AvailablePseudomonas sp. (strain ACP)Q00740 details
Methylmalonyl-CoA carboxyltransferase 5S subunitProteinunknownNot AvailablePropionibacterium freudenreichii subsp. shermaniiQ70AC7 details
Related Articles
AbsorptionNot Available
Volume of distributionNot Available
Protein bindingNot Available
MetabolismNot Available
Route of eliminationNot Available
Half lifeNot Available
ClearanceNot Available
ToxicityNot Available
Affected organismsNot Available
PathwayCategorySMPDB ID
Cystathionine Beta-Synthase DeficiencyDiseaseSMP00177
3-Phosphoglycerate dehydrogenase deficiencyDiseaseSMP00721
Selenoamino Acid MetabolismMetabolicSMP00029
Methionine MetabolismMetabolicSMP00033
Methylmalonic Aciduria Due to Cobalamin-Related DisordersDiseaseSMP00201
Methionine Adenosyltransferase DeficiencyDiseaseSMP00221
Propanoate MetabolismMetabolicSMP00016
Malonic AciduriaDiseaseSMP00198
Threonine and 2-Oxobutanoate DegradationMetabolicSMP00452
Hyperglycinemia, non-ketoticDiseaseSMP00485
Homocystinuria-megaloblastic anemia due to defect in cobalamin metabolism, cblG complementation typeDiseaseSMP00570
S-Adenosylhomocysteine (SAH) Hydrolase DeficiencyDiseaseSMP00214
Glycine N-methyltransferase DeficiencyDiseaseSMP00222
Non Ketotic HyperglycinemiaDiseaseSMP00223
Homocysteine DegradationMetabolicSMP00455
Dimethylglycine Dehydrogenase DeficiencyDiseaseSMP00484
Malonyl-coa decarboxylase deficiencyDiseaseSMP00502
Glycine and Serine MetabolismMetabolicSMP00004
Dihydropyrimidine Dehydrogenase Deficiency (DHPD)DiseaseSMP00179
Dimethylglycine Dehydrogenase DeficiencyDiseaseSMP00242
Methylenetetrahydrofolate Reductase Deficiency (MTHFRD)DiseaseSMP00340
Gamma-cystathionase deficiency (CTH)DiseaseSMP00514
Homocystinuria, cystathionine beta-synthase deficiencyDiseaseSMP00515
Pharmacogenomic Effects/ADRs Not Available
Drug Interactions Not Available
Food InteractionsNot Available
Synthesis ReferenceNot Available
General ReferencesNot Available
External Links
ATC CodesNot Available
AHFS CodesNot Available
PDB Entries
FDA labelNot Available
MSDSNot Available
Clinical Trials
Clinical Trials Not Available
ManufacturersNot Available
PackagersNot Available
Dosage formsNot Available
PricesNot Available
PatentsNot Available
Experimental Properties
melting point (°C)33 °CPhysProp
Predicted Properties
Water Solubility79.2 mg/mLALOGPS
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
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted ADMET features
Human Intestinal Absorption+0.9869
Blood Brain Barrier+0.9228
Caco-2 permeable-0.6181
P-glycoprotein substrateNon-substrate0.776
P-glycoprotein inhibitor INon-inhibitor0.8942
P-glycoprotein inhibitor IINon-inhibitor0.9606
Renal organic cation transporterNon-inhibitor0.9541
CYP450 2C9 substrateNon-substrate0.8362
CYP450 2D6 substrateNon-substrate0.9289
CYP450 3A4 substrateNon-substrate0.7712
CYP450 1A2 substrateNon-inhibitor0.9532
CYP450 2C9 inhibitorNon-inhibitor0.9075
CYP450 2D6 inhibitorNon-inhibitor0.9664
CYP450 2C19 inhibitorNon-inhibitor0.9475
CYP450 3A4 inhibitorNon-inhibitor0.9805
CYP450 inhibitory promiscuityLow CYP Inhibitory Promiscuity0.9876
Ames testNon AMES toxic0.8311
BiodegradationReady biodegradable0.9387
Rat acute toxicity1.6927 LD50, mol/kg Not applicable
hERG inhibition (predictor I)Weak inhibitor0.9835
hERG inhibition (predictor II)Non-inhibitor0.969
ADMET data is predicted using admetSAR, a free tool for evaluating chemical ADMET properties. (23092397 )
Mass Spec (NIST)Not Available
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
GC-MSGC-MS Spectrum - EI-Bsplash10-0ftb-0920000000-a6c93d8761ef15f7f7d4View in MoNA
GC-MSGC-MS Spectrum - EI-Bsplash10-014i-0920000000-406fe70e72dbd9c3f274View in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOFsplash10-0gbj-1900000000-8daa299f5bc38a7f9b3eView in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOFsplash10-014s-1910000000-d01bcd7b41fdcc634eeaView in MoNA
GC-MSGC-MS Spectrum - GC-MSsplash10-000i-9200000000-3b3816ffee5771215904View in MoNA
GC-MSGC-MS Spectrum - GC-MSsplash10-000i-6910000000-5b264d5f7e53f3e80b12View in MoNA
GC-MSGC-MS Spectrum - GC-MSsplash10-001i-6950000000-db7f6a0f03a8cce59baeView in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOFsplash10-000i-8900000000-97bab6630de4df095a7fView in MoNA
GC-MSGC-MS Spectrum - GC-EI-TOFsplash10-000i-9200000000-0ebb2354fe3f935fe177View in MoNA
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
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF , 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
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.
KingdomOrganic compounds
Super ClassOrganic acids and derivatives
ClassKeto acids and derivatives
Sub ClassShort-chain keto acids and derivatives
Direct ParentShort-chain keto acids and derivatives
Alternative ParentsAlpha-keto acids and derivatives / Alpha-hydroxy ketones / Monocarboxylic acids and derivatives / Carboxylic acids / Organic oxides / Hydrocarbon derivatives
SubstituentsShort-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
Molecular FrameworkAliphatic acyclic compounds
External Descriptors2-oxo monocarboxylic acid, short-chain fatty acid (CHEBI:30831 ) / Oxo fatty acids (C00109 ) / Oxo fatty acids (LMFA01060002 )


Pseudomonas sp. (strain ACP)
Pharmacological action
General Function:
Pyridoxal phosphate binding
Specific Function:
Catalyzes a cyclopropane ring-opening reaction, the irreversible conversion of 1-aminocyclopropane-1-carboxylate (ACC) to ammonia and alpha-ketobutyrate. Allows growth on ACC as a nitrogen source.
Gene Name:
Uniprot ID:
Uniprot Name:
1-aminocyclopropane-1-carboxylate deaminase
Molecular Weight:
36671.515 Da
  1. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [PubMed:17139284 ]
  2. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [PubMed:17016423 ]
Propionibacterium freudenreichii subsp. shermanii
Pharmacological action
General Function:
Methylmalonyl-coa carboxytransferase activity
Specific Function:
The 5S subunit specifically catalyzes the transfer of the carboxyl group from biotin of the 1.3S subunit to pyruvate to form oxaloacetate and 1.3S biotin.
Gene Name:
Not Available
Uniprot ID:
Uniprot Name:
Methylmalonyl-CoA carboxyltransferase 5S subunit
Molecular Weight:
55649.06 Da
  1. Overington JP, Al-Lazikani B, Hopkins AL: How many drug targets are there? Nat Rev Drug Discov. 2006 Dec;5(12):993-6. [PubMed:17139284 ]
  2. Imming P, Sinning C, Meyer A: Drugs, their targets and the nature and number of drug targets. Nat Rev Drug Discov. 2006 Oct;5(10):821-34. [PubMed:17016423 ]
Drug created on June 13, 2005 07:24 / Updated on September 01, 2017 11:18