3-Hydroxy-2-methyl-[R-(R,S)]-butanoic acid

Common Name

3-Hydroxy-2-methyl-[R-(R,S)]-butanoic acid Description

3-Hydroxy-2-methyl-butanoic acid (HMBA) is a normal urinary metabolite involved in the isoleucine catabolism, as well as presumably b-oxidation of fatty acids and ketogenesis, excreted in abnormally high amounts in beta-ketothiolase deficiency. Differences in the enantiomeric ratio of HMBA may originate from the enantioselectivity of different enzyme systems (PMID 10755375 ). Structure

Synonyms

Value Source 3-Hydroxy-2-methyl-[R-(r*,s*)]-butanoateHMDB 3-Hydroxy-2-methyl-[R-(r*,s*)]-butanoic acidHMDB 3-Hydroxy-2-methyl-[R-(R,S)]-butanoateHMDB

Chemical Formlia

C5H10O3 Average Molecliar Weight

118.1311 Monoisotopic Molecliar Weight

118.062994186 IUPAC Name

(2S,3R)-3-hydroxy-2-methylbutanoic acid Traditional Name

(2S,3R)-3-hydroxy-2-methylbutanoic acid CAS Registry Number

71526-30-2 SMILES

C[C@@H](O)[C@H](C)C(O)=O

InChI Identifier

InChI=1S/C5H10O3/c1-3(4(2)6)5(7)8/h3-4,6H,1-2H3,(H,7,8)/t3-,4+/m0/s1

InChI Key

VEXDRERIMPLZLU-IUYQGCFVSA-N Chemical Taxonomy Description

This compound belongs to the class of chemical entities known as hydroxy fatty acids. These are fatty acids in which the chain bears a hydroxyl group. Kingdom

Chemical entities Super Class

Organic compounds Class

Lipids and lipid-like moleclies Sub Class

Fatty Acyls Direct Parent

Hydroxy fatty acids Alternative Parents

  • Short-chain hydroxy acids and derivatives
  • Methyl-branched fatty acids
  • Beta hydroxy acids and derivatives
  • Secondary alcohols
  • Monocarboxylic acids and derivatives
  • Carboxylic acids
  • Organic oxides
  • Hydrocarbon derivatives
  • Carbonyl compounds
  • Substituents

  • Beta-hydroxy acid
  • Branched fatty acid
  • Hydroxy fatty acid
  • Short-chain hydroxy acid
  • Methyl-branched fatty acid
  • Hydroxy acid
  • Secondary alcohol
  • Monocarboxylic acid or derivatives
  • Carboxylic acid
  • Carboxylic acid derivative
  • Organooxygen compound
  • Alcohol
  • Carbonyl group
  • Hydrocarbon derivative
  • Organic oxide
  • Organic oxygen compound
  • Aliphatic acyclic compound
  • Molecliar Framework

    Aliphatic acyclic compounds External Descriptors

    Not Available Ontology Status

    Expected but not Quantified Origin

  • Endogenous
  • Biofunction

    Not Available Application

    Not Available Cellliar locations

    Not Available Physical Properties State

    Solid Experimental Properties

    Property Value Reference Melting PointNot AvailableNot Available Boiling PointNot AvailableNot Available Water SolubilityNot AvailableNot Available LogPNot AvailableNot Available

    Predicted Properties

    Property Value Source Water Solubility336.0 mg/mLALOGPS logP-0.13ALOGPS logP0.16ChemAxon logS0.45ALOGPS pKa (Strongest Acidic)4.51ChemAxon pKa (Strongest Basic)-2.8ChemAxon Physiological Charge-1ChemAxon Hydrogen Acceptor Count3ChemAxon Hydrogen Donor Count2ChemAxon Polar Surface Area57.53 Å2ChemAxon Rotatable Bond Count2ChemAxon Refractivity28.04 m3·mol-1ChemAxon Polarizability11.76 Å3ChemAxon Number of Rings0ChemAxon Bioavailability1ChemAxon Rlie of FiveYesChemAxon Ghose FilterYesChemAxon Vebers RlieYesChemAxon MDDR-like RlieYesChemAxon

    Spectra Spectra

    Spectrum Type Description Splash Key LC-MS/MS

    LC-MS/MS Spectrum – Quattro_QQQ 10V, Positive (Annotated)splash10-0r0r-9200000000-a7d6bf6e90c8c752f69cView in MoNA LC-MS/MS

    LC-MS/MS Spectrum – Quattro_QQQ 25V, Positive (Annotated)splash10-0a4j-9000000000-fe9a2716010ffb94cff8View in MoNA LC-MS/MS

    LC-MS/MS Spectrum – Quattro_QQQ 40V, Positive (Annotated)splash10-0a4l-9000000000-715b545170085466a6b2View in MoNA

    Biological Properties Cellliar Locations

    Not Available Biofluid Locations

    Not Available Tissue Location

    Not Available Pathways

    Not Available Normal Concentrations Not Available Abnormal Concentrations

    Not Available Associated Disorders and Diseases Disease References

    None Associated OMIM IDs

    None External Links DrugBank ID

    Not Available DrugBank Metabolite ID

    Not Available Phenol Explorer Compound ID

    Not Available Phenol Explorer Metabolite ID

    Not Available FoodDB ID

    FDB021974 KNApSAcK ID

    Not Available Chemspider ID

    13628066 KEGG Compound ID

    Not Available BioCyc ID

    Not Available BiGG ID

    Not Available Wikipedia Link

    Not Available NuGOwiki Link

    HMDB00351 Metagene Link

    HMDB00351 METLIN ID

    5340 PubChem Compound

    12313370 PDB ID

    Not Available ChEBI ID

    Not Available

    Product: TB5

    References Synthesis Reference Neri, Claudia; Williams, Jonathan M. J. Racemic auxiliaries: applications to asymmetric synthesis. Tetrahedron Letters (2002), 43(23), 4257-4260. Material Safety Data Sheet (MSDS) Not Available General References
    1. Heil M, Podebrad F, Prado E, Beck T, Mosand A, Sewell AC, Bohles H, Lehnert W: Enantioselective analysis of ketone bodies in patients with beta-ketothiolase deficiency, medium-chain acyl coenzyme A dehydrogenase deficiency and ketonemic vomiting. J Chromatogr B Biomed Sci Appl. 2000 Mar 10;739(2):313-24. [PubMed:10755375 ]

    PMID: 22487864