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Record Information
Version1.0
Creation Date2016-07-13 19:43:28 UTC
Update Date2016-07-20 21:03:29 UTC
LmdbLMDB00151
Secondary Accession NumbersNone
Metabolite Identification
Common Name2-Hydroxy-3-methylbutyric acid
Description2-Hydroxy-3-methylbutyric acid (also known as 2-Hydroxyisovaleric acid) is a metabolite found in the urine of patients with Phenylketonuria (PMID 7978272 ), Methylmalonic acidemia, Propionic acidemia, 3-Ketothiolase deficiency, Isovaleric acidemia, 3-Methylcrotonylglycemia, 3-Hydroxy-3-methylglutaric acidemia, Multiple carboxylase deficiency, Glutaric aciduria, Ornithine transcarbamylase deficiency, glyceroluria, Tyrosinemia type 1, Galactosemia, and Maple syrup urine disease (PMID 11048741 ). 2-hydroxyisovaleric acid has been identified in the urine of patients with lactic and ketoacidosis (PMID: 884872 ). It has also been identified in the urine of severely asphyxiated babies (PMID: 1610944 ). 2-hydroxyisovaleric acid originates mainly from ketogenesis and from the metabolism of valine, leucine and isoleucine (PMID: 6434570 ).
Structure
Thumb
Synonyms
ValueSource
2-Hydroxyisopentanoic acidChEBI
2-Hydroxyisovaleric acidChEBI
3-Methyl-2-hydroxybutyric acidChEBI
alpha-Hydroxyisovaleric acidChEBI
2-HydroxyisopentanoateGenerator
2-HydroxyisovalerateGenerator
3-Methyl-2-hydroxybutyrateGenerator
a-HydroxyisovalerateGenerator
a-Hydroxyisovaleric acidGenerator
alpha-HydroxyisovalerateGenerator
Α-hydroxyisovalerateGenerator
Α-hydroxyisovaleric acidGenerator
2-Hydroxy-3-methylbutyrateGenerator
2-Hydroxy-3-methyl-butyric acidHMDB
2-Hydroxy-3-methylbutanoateHMDB
2-Hydroxy-3-methylbutanoic acidHMDB
2-OxyisovalerateHMDB
2-Oxyisovaleric acidHMDB
DL-2-Hydroxy-3-methylbutanoateHMDB
DL-2-Hydroxy-3-methylbutanoic acidHMDB
DL-2-HydroxyisovalerateHMDB
DL-2-Hydroxyisovaleric acidHMDB
DL-a-HydroxyisovalerateHMDB
DL-a-Hydroxyisovaleric acidHMDB
DL-alpha-HydroxyisovalerateHMDB
DL-alpha-Hydroxyisovaleric acidHMDB
2-Hydroxyisovaleric acid, monosodium salt, (S)-isomerHMDB
2-Hydroxyisovaleric acid, (S)-isomerHMDB
2-Hydroxyisovaleric acid, calcium (2:1) saltHMDB
2-Hydroxyisovaleric acid, (R)-isomerHMDB
Chemical FormulaC5H10O3
Average Molecular Weight118.1311
Monoisotopic Molecular Weight118.062994186
IUPAC Name2-hydroxy-3-methylbutanoic acid
Traditional Name2-hydroxyisovaleric acid
CAS Registry Number4026-18-0
SMILES
CC(C)C(O)C(O)=O
InChI Identifier
InChI=1S/C5H10O3/c1-3(2)4(6)5(7)8/h3-4,6H,1-2H3,(H,7,8)
InChI KeyNGEWQZIDQIYUNV-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds known as hydroxy fatty acids. These are fatty acids in which the chain bears a hydroxyl group.
KingdomOrganic compounds
Super ClassLipids and lipid-like molecules
ClassFatty Acyls
Sub ClassFatty acids and conjugates
Direct ParentHydroxy fatty acids
Alternative Parents
Substituents
  • Branched fatty acid
  • Hydroxy fatty acid
  • Methyl-branched fatty acid
  • Alpha-hydroxy acid
  • Hydroxy acid
  • Secondary alcohol
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organooxygen compound
  • Carbonyl group
  • Alcohol
  • Hydrocarbon derivative
  • Organic oxide
  • 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
logP0.1ALOGPS
logP0.42ChemAxon
logS0.26ALOGPS
pKa (Strongest Acidic)4.14ChemAxon
pKa (Strongest Basic)-3.9ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area57.53 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity27.84 m³·mol⁻¹ChemAxon
Polarizability11.77 ųChemAxon
Number of Rings0ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-006x-9100000000-3ceb85540106a01209a9Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-00g1-9520000000-27e47b254facef447ecfSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_1) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TMS_1_2) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_1) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_1_2) - 70eV, PositiveNot AvailableSpectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (TBDMS_2_1) - 70eV, PositiveNot AvailableSpectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 10V, Negative (Annotated)splash10-01b9-9800000000-34c80f5b3cfe512db815Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 25V, Negative (Annotated)splash10-006t-9100000000-62b5dd0328186489f167Spectrum
LC-MS/MSLC-MS/MS Spectrum - Quattro_QQQ 40V, Negative (Annotated)splash10-00kb-9400000000-4b607be60b20b11a9328Spectrum
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-IT , negativesplash10-00di-9000000000-053084615922d2811fc0Spectrum
LC-MS/MSLC-MS/MS Spectrum - Linear Ion Trap , negativesplash10-00di-9000000000-c74232c34d7c991de0c5Spectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Negativesplash10-052f-9000000000-1837dbe9ec7e7648abacSpectrum
LC-MS/MSLC-MS/MS Spectrum - 35V, Positivesplash10-0gbc-9400000000-3dae3f739ba9de64475aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0gi0-6900000000-9c5d211acf2118d6a136Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-00dl-9100000000-fd55205401dd434cfdccSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-05fu-9000000000-44a71cd407c65a176f7dSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-01b9-6900000000-977b23edb76b18575dc2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-00xr-9400000000-a265e0ef4d3a3366c0beSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-05fr-9000000000-a258a01f539f2e2cd1e7Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0ab9-9100000000-4440e0dd7c3edf6166aeSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0a4i-9000000000-848921fdd36001ccc2adSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0006-9000000000-ec34045be03977dd8e79Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-014i-2900000000-d5f27e5fc2f84d237f6aSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-014j-7900000000-d8e0dd0fbaecb6b1909eSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0a4i-9000000000-a096d70c21dd426764cbSpectrum
1D NMR1H NMR SpectrumNot AvailableSpectrum
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableSpectrum
Biological Properties
Cellular LocationsNot Available
Biofluid Locations and Tissue Locations
  • Urine
Concentrations
BiofluidStatusValueConditionSpeciesReferenceDetails
UrineDetected but not QuantifiedNot ApplicableNot AvailableEquine
    • E. E. Escalona, J...
details
DrugBank IDNot Available
HMDB IDHMDB0000407
FooDB IDFDB022023
Phenol Explorer IDNot Available
KNApSAcK IDNot Available
BiGG IDNot Available
BioCyc IDNot Available
METLIN ID5396
PDB IDNot Available
Wikipedia LinkNot Available
Chemspider ID90190
ChEBI ID60645
PubChem Compound ID99823
Kegg Compound IDNot Available
YMDB IDYMDB01318
ECMDB IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Magni F, Arnoldi L, Galati G, Galli Kienle M: Simultaneous determination of plasma levels of alpha-ketoisocaproic acid and leucine and evaluation of alpha-[1-13C]ketoisocaproic acid and [1-13C]leucine enrichment by gas chromatography-mass spectrometry. Anal Biochem. 1994 Aug 1;220(2):308-14. [7978272 ]
  2. Ohie T, Fu X, Iga M, Kimura M, Yamaguchi S: Gas chromatography-mass spectrometry with tert.-butyldimethylsilyl derivation: use of the simplified sample preparations and the automated data system to screen for organic acidemias. J Chromatogr B Biomed Sci Appl. 2000 Sep 1;746(1):63-73. [11048741 ]
  3. Landaas S, Jakobs C: The occurrence of 2-hydroxyisovaleric acid in patients with lactic acidosis and ketoacidosis. Clin Chim Acta. 1977 Aug 1;78(3):489-93. [884872 ]
  4. Walker V, Mills GA: Effects of birth asphyxia on urinary organic acid excretion. Biol Neonate. 1992;61(3):162-72. [1610944 ]
  5. Liebich HM, Forst C: Hydroxycarboxylic and oxocarboxylic acids in urine: products from branched-chain amino acid degradation and from ketogenesis. J Chromatogr. 1984 Aug 10;309(2):225-42. [6434570 ]