Record Information
Version1.0
Creation Date2016-07-13 19:47:50 UTC
Update Date2016-07-20 21:00:01 UTC
LmdbLMDB00347
Secondary Accession NumbersNone
Metabolite Identification
Common Name2-Oxo-4-methylthiobutanoic acid
Description2-Oxo-4-methylthiobutanoic acid, also known as 4-(methylsulfanyl)-2-oxobutanoate or 2-keto-4-methylthiobutyrate, belongs to the class of organic compounds known as thia fatty acids. These are fatty acid derivatives obtained by insertion of a sulfur atom at specific positions in the chain. 2-Oxo-4-methylthiobutanoic acid is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral.
Structure
Thumb
Synonyms
ValueSource
2-Keto-4-methylthiobutyric acidChEBI
2-oxo-4-MethylthiobutanoateChEBI
2-OxomethionineChEBI
4-(METHYLsulfanyl)-2-oxobutanoIC ACIDChEBI
4-Methylthio-2-oxobutanoateChEBI
alpha-oxo-gamma-Methylthiobutyric acidChEBI
4-(Methylsulfanyl)-2-oxobutanoateKegg
2-Keto-4-methylthiobutyrateGenerator
4-(METHYLsulphanyl)-2-oxobutanoateGenerator
4-(METHYLsulphanyl)-2-oxobutanoic acidGenerator
4-Methylthio-2-oxobutanoic acidGenerator
a-oxo-g-MethylthiobutyrateGenerator
a-oxo-g-Methylthiobutyric acidGenerator
alpha-oxo-gamma-MethylthiobutyrateGenerator
Α-oxo-γ-methylthiobutyrateGenerator
Α-oxo-γ-methylthiobutyric acidGenerator
2-KetomethiobutyrateHMDB
4-Methylthio-2-ketobutanoateHMDB
4-Methylthio-2-ketobutanoic acidHMDB
4-Methylthio-2-ketobutyrateHMDB
4-Methylthio-2-oxobutyrateHMDB
alpha-Keto-methiolbutyric acidHMDB
Keto-4-methylthiobutyrateHMDB
KetomethiobutyrateHMDB
Ketomethiobutyric acidHMDB
KMTBHMDB
MethylthiobutyrateHMDB
Methylthiobutyric acidHMDB
2-Keto-4-methylthiobutanoic acidHMDB
2-Keto-4-thiomethylbutyrateHMDB
2-oxo-4-Thiomethylbutyric acidHMDB
alpha-Keto-gamma-methiolbutyrateHMDB
alpha-KetomethionineHMDB
alpha-OxomethionineHMDB
2-Keto-4-methylthiobutyric acid, monosodium saltHMDB
2-Ketothiomethylbutyric acidHMDB
4-Methylthio-2-oxobutyric acidHMDB
S-Methyl-alpha-ketobutyric acidHMDB
2-Keto-4-methylthiobutyric acid, calcium saltHMDB
4-Methylthio-2-ketobutyric acidHMDB
gamma-Methiol-keto-butyric acidHMDB
4-Methylmercapto-2-oxobutyrateHMDB
2-oxo-4-Methylthiobutanoic acidKEGG
Chemical FormulaC5H8O3S
Average Molecular Weight148.18
Monoisotopic Molecular Weight148.019414812
IUPAC Name4-(methylsulfanyl)-2-oxobutanoic acid
Traditional Name2-oxo-4-thiomethylbutyric acid
CAS Registry Number583-92-6
SMILES
CSCCC(=O)C(O)=O
InChI Identifier
InChI=1S/C5H8O3S/c1-9-3-2-4(6)5(7)8/h2-3H2,1H3,(H,7,8)
InChI KeySXFSQZDSUWACKX-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as thia fatty acids. These are fatty acid derivatives obtained by insertion of a sulfur atom at specific positions in the chain.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentThia fatty acids
Alternative Parents
Substituents
  • Short-chain keto acid
  • Thia fatty acid
  • Alpha-keto acid
  • Keto acid
  • Alpha-hydroxy ketone
  • Ketone
  • Carboxylic acid derivative
  • Carboxylic acid
  • Dialkylthioether
  • Monocarboxylic acid or derivatives
  • Sulfenyl compound
  • Thioether
  • Hydrocarbon derivative
  • Organic oxide
  • Carbonyl group
  • Organooxygen compound
  • Organosulfur compound
  • Organic oxygen compound
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Ontology
StatusDetected but not Quantified
OriginNot Available
BiofunctionNot Available
ApplicationNot Available
Cellular locationsNot Available
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP-0.07ALOGPS
logP1.12ChemAxon
logS-1.3ALOGPS
pKa (Strongest Acidic)3.3ChemAxon
pKa (Strongest Basic)-9.7ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area54.37 ŲChemAxon
Rotatable Bond Count4ChemAxon
Refractivity35.07 m³·mol⁻¹ChemAxon
Polarizability14.21 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
GC-MSGC-MS Spectrum - GC-MS (1 MEOX; 1 TMS)splash10-0f79-9620000000-a37f1649aaa00fe355f6Spectrum
GC-MSGC-MS Spectrum - GC-MS (1 MEOX; 1 TMS)splash10-0uyr-7940000000-be5c411217da093f2c8aSpectrum
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0f79-9620000000-a37f1649aaa00fe355f6Spectrum
GC-MSGC-MS Spectrum - GC-MS (Non-derivatized)splash10-0uyr-7940000000-be5c411217da093f2c8aSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0005-9200000000-1471d6fe57ac965a873dSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (1 TMS) - 70eV, Positivesplash10-0g4j-9400000000-16ddd3b5c053991fac9aSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF 35V, positivesplash10-0a6t-0900000000-ed86a80611ad68e921e2Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QFT , negativesplash10-0002-9000000000-9b1238b1c990e180a476Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QTOF 35V, negativesplash10-0002-9000000000-a0fb6b922f7482546f1fSpectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 0V, negativesplash10-0002-1900000000-f3facf4268a57538266cSpectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 0V, negativesplash10-0002-2900000000-71e4f52b95b529acc1a3Spectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 0V, negativesplash10-0002-5900000000-c6325fbf5479dbaa355cSpectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 0V, negativesplash10-0002-7900000000-bccb79b226dccd29e36fSpectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 1V, negativesplash10-0002-9700000000-8e6b66c2a5dd967a9539Spectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 1V, negativesplash10-0002-9500000000-dee1d47be79038a62ac8Spectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 1V, negativesplash10-0002-9200000000-184f804af473361e56d4Spectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 2V, negativesplash10-0002-9200000000-9f652bc59797907a90e8Spectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 2V, negativesplash10-0002-9100000000-2924be77506cc359576fSpectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 3V, negativesplash10-0002-9000000000-ac83262a096530d8343fSpectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 3V, negativesplash10-0002-9000000000-12841f2d918636eb3ba8Spectrum
LC-MS/MSLC-MS/MS Spectrum - n/a 10V, negativesplash10-0002-9000000000-beb5b9021683b7e71f41Spectrum
LC-MS/MSLC-MS/MS Spectrum - n/a 10V, negativesplash10-0a4i-9000000000-5c4795e954d5c3e9b74eSpectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 0V, positivesplash10-0006-0900000000-a7b6fa585a128c4bbf25Spectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 1V, positivesplash10-0006-0900000000-5d4054fa9cdf6414108dSpectrum
LC-MS/MSLC-MS/MS Spectrum - Orbitrap 2V, positivesplash10-0006-0900000000-70154862c61d3d6ece44Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0f8a-1900000000-ed36a40a48bf904312f4Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0zir-9700000000-7bbe813aa31ceba0b525Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a6r-9100000000-89ba14ad10b374e8daabSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0002-9200000000-b9179ec180a89222c147Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0002-9100000000-63d77e1e6b7bea5353feSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0002-9000000000-31b5d7804293c55c928eSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
1D NMR13C NMR SpectrumNot AvailableSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
Biological Properties
Cellular LocationsNot Available
Biofluid Locations and Tissue Locations
  • Milk
Concentrations
BiofluidStatusValueConditionSpeciesReferenceDetails
MilkDetected but not QuantifiedNot ApplicableNot AvailableBovine details
DrugBank IDDB02238
HMDB IDHMDB0001553
FooDB IDFDB030353
Phenol Explorer IDNot Available
KNApSAcK IDC00007474
BiGG ID228408
BioCyc IDCPD-479
METLIN ID6319
PDB IDNot Available
Wikipedia LinkNot Available
Chemspider ID460
ChEBI ID33574
PubChem Compound ID473
Kegg Compound IDC01180
YMDB IDYMDB00421
ECMDB IDECMDB01553
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Quash G, Roch AM, Chantepie J, Michal Y, Fournet G, Dumontet C: Methional derived from 4-methylthio-2-oxobutanoate is a cellular mediator of apoptosis in BAF3 lymphoid cells. Biochem J. 1995 Feb 1;305 ( Pt 3):1017-25. [7848263 ]