<?xml version="1.0" encoding="UTF-8"?>
<metabolite>
  <version>1.0</version>
  <creation_date>2016-09-30 22:49:37 UTC</creation_date>
  <update_date>2020-04-22 15:09:17 UTC</update_date>
  <accession>BMDB0001987</accession>
  <secondary_accessions>
    <accession>BMDB01987</accession>
  </secondary_accessions>
  <name>2-Hydroxy-2-methylbutyric acid</name>
  <description/>
  <synonyms>
    <synonym>2-Hydroxy-2-methylbutyrate</synonym>
    <synonym>(+/-)-2-hydroxy-2-methylbutanoate</synonym>
    <synonym>(+/-)-2-hydroxy-2-methylbutanoic acid</synonym>
    <synonym>(+/-)-2-hydroxy-2-methylbutyric acid</synonym>
    <synonym>(+/-)-a-hydroxy-a-methylbutyric acid</synonym>
    <synonym>(+/-)-alpha-hydroxy-alpha-methylbutyric acid</synonym>
    <synonym>2-Hydroxy-2-methyl butyrate</synonym>
    <synonym>2-Hydroxy-2-methyl butyric acid</synonym>
    <synonym>2-Hydroxy-2-methyl-butanoate</synonym>
    <synonym>2-Hydroxy-2-methyl-butanoic acid</synonym>
    <synonym>2-Hydroxy-2-methyl-butyrate</synonym>
    <synonym>2-Hydroxy-2-methyl-butyric acid</synonym>
    <synonym>2-Hydroxy-2-methyl-N-butyrate</synonym>
    <synonym>2-Hydroxy-2-methyl-N-butyric acid</synonym>
    <synonym>2-Hydroxy-2-methylbutanoate</synonym>
    <synonym>2-Hydroxy-2-methylbutanoic acid</synonym>
    <synonym>2-Methyl-2-hydroxybutyric acid</synonym>
    <synonym>a-Hydroxy-a-methyl-butyric acid</synonym>
    <synonym>a-Hydroxy-a-methylbutyric acid</synonym>
    <synonym>alpha-Hydroxy-alpha-methyl-butyric acid</synonym>
    <synonym>alpha-Hydroxy-alpha-methylbutyric acid</synonym>
    <synonym>2-Hydroxy-2-methylbutyric acid</synonym>
  </synonyms>
  <chemical_formula>C5H10O3</chemical_formula>
  <average_molecular_weight>118.1311</average_molecular_weight>
  <monisotopic_moleculate_weight>118.062994186</monisotopic_moleculate_weight>
  <iupac_name>2-hydroxy-2-methylbutanoic acid</iupac_name>
  <traditional_iupac>2-hydroxy-2-methylbutyric acid</traditional_iupac>
  <cas_registry_number>3739-30-8</cas_registry_number>
  <smiles>CCC(C)(O)C(O)=O</smiles>
  <inchi>InChI=1S/C5H10O3/c1-3-5(2,8)4(6)7/h8H,3H2,1-2H3,(H,6,7)</inchi>
  <inchikey>MBIQENSCDNJOIY-UHFFFAOYSA-N</inchikey>
  <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.</description>
    <kingdom>Organic compounds</kingdom>
    <super_class>Lipids and lipid-like molecules</super_class>
    <class>Fatty Acyls</class>
    <sub_class>Fatty acids and conjugates</sub_class>
    <direct_parent>Hydroxy fatty acids</direct_parent>
    <alternative_parents>
      <alternative_parent>Alpha hydroxy acids and derivatives</alternative_parent>
      <alternative_parent>Carbonyl compounds</alternative_parent>
      <alternative_parent>Carboxylic acids</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Methyl-branched fatty acids</alternative_parent>
      <alternative_parent>Monocarboxylic acids and derivatives</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Tertiary alcohols</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Alcohol</substituent>
      <substituent>Aliphatic acyclic compound</substituent>
      <substituent>Alpha-hydroxy acid</substituent>
      <substituent>Branched fatty acid</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Carboxylic acid</substituent>
      <substituent>Carboxylic acid derivative</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Hydroxy acid</substituent>
      <substituent>Hydroxy fatty acid</substituent>
      <substituent>Methyl-branched fatty acid</substituent>
      <substituent>Monocarboxylic acid or derivatives</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Tertiary alcohol</substituent>
    </substituents>
    <molecular_framework>Aliphatic acyclic compounds</molecular_framework>
    <external_descriptors>
      <external_descriptor>2-hydroxy fatty acid</external_descriptor>
      <external_descriptor>Hydroxy fatty acids</external_descriptor>
      <external_descriptor>branched-chain fatty acid</external_descriptor>
    </external_descriptors>
  </taxonomy>
  <experimental_properties>
    <state>Solid</state>
    <property>
      <kind>melting_point</kind>
      <value>74 °C</value>
      <source/>
    </property>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>0.13</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>0.47</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>0.48</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_acidic</kind>
      <value>4.1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>-3.8</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>2-hydroxy-2-methylbutanoic acid</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>118.1311</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>118.062994186</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>CCC(C)(O)C(O)=O</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C5H10O3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C5H10O3/c1-3-5(2,8)4(6)7/h8H,3H2,1-2H3,(H,6,7)</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>MBIQENSCDNJOIY-UHFFFAOYSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>57.53</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>28.08</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>11.73</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>donor_count</kind>
      <value>2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>physiological_charge</kind>
      <value>-1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formal_charge</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>number_of_rings</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>bioavailability</kind>
      <value>1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rule_of_five</kind>
      <value>Yes</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>ghose_filter</kind>
      <value>Yes</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>veber_rule</kind>
      <value>Yes</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mddr_like_rule</kind>
      <value>Yes</value>
      <source>ChemAxon</source>
    </property>
  </predicted_properties>
  <pathways>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>20985</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>38212</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>168153</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrTwoD</type>
      <spectrum_id>1769</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>1511</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>1512</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>1513</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1926</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1927</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>1928</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>312715</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>312716</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>312717</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>358036</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>358037</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>358038</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2226150</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2226155</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2228520</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2231033</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2233146</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2233394</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2235556</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2426887</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2426888</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2426889</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2511822</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2511823</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2511824</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>1829</spectrum_id>
    </spectrum>
  </spectra>
  <normal_concentrations>
  </normal_concentrations>
  <foodb_id>FDB022784</foodb_id>
  <chemspider_id>86129</chemspider_id>
  <pubchem_compound_id>95433</pubchem_compound_id>
  <drugbank_id/>
  <kegg_id/>
  <pdbe_id/>
  <chebi_id>68454</chebi_id>
  <knapsack_id>C00052118</knapsack_id>
  <meta_cyc_id/>
  <phenol_explorer_compound_id/>
  <bigg_id/>
  <wikipedia_id/>
  <metlin_id>6416</metlin_id>
  <synthesis_reference>Young, Wm. G.; Dillon, Robert T.; Lucas, Howard J.  Synthesis of the isomeric 2-butenes.    Journal of the American Chemical Society  (1929),  51  2528-34.</synthesis_reference>
  <general_references>
  </general_references>
  <protein_associations>
  </protein_associations>
</metabolite>
