<?xml version="1.0" encoding="UTF-8"?>
<metabolite>
  <version>1.0</version>
  <creation_date>2016-09-30 22:18:36 UTC</creation_date>
  <update_date>2020-05-19 22:01:20 UTC</update_date>
  <accession>BMDB0000023</accession>
  <secondary_accessions>
    <accession>BMDB00023</accession>
  </secondary_accessions>
  <name>(S)-3-Hydroxyisobutyric acid</name>
  <description/>
  <synonyms>
    <synonym>(S)-3-Hydroxy-2-methylpropanoic acid</synonym>
    <synonym>(S)-3-Hydroxy-2-methylpropionic acid</synonym>
    <synonym>(S)-3-Hydroxy-2-methylpropanoate</synonym>
    <synonym>(S)-3-Hydroxy-2-methylpropionate</synonym>
    <synonym>(S)-3-Hydroxyisobutyrate</synonym>
    <synonym>2-Methyl-L-(+)-hydracrylate</synonym>
    <synonym>2-Methyl-L-(+)-hydracrylic acid</synonym>
    <synonym>3-Hydroxy(iso)butyric acid</synonym>
    <synonym>3-Hydroxy-2-methyl-(S)-propanoate</synonym>
    <synonym>3-Hydroxy-2-methyl-(S)-propanoic acid</synonym>
    <synonym>3-Hydroxy-2-methylpropanoate</synonym>
    <synonym>3-Hydroxy-2-methylpropanoic acid</synonym>
    <synonym>3-Hydroxy-isobutyrate</synonym>
    <synonym>3-Hydroxyisobutyrate</synonym>
    <synonym>3-Hydroxyisobutyric acid</synonym>
    <synonym>(2S)-3-Hydroxy-2-methylpropanoic acid</synonym>
    <synonym>(2S)-3-Hydroxy-2-methylpropionic acid</synonym>
    <synonym>(S)-beta-Hydroxyisobutyric acid</synonym>
    <synonym>(S)-Β-hydroxyisobutyric acid</synonym>
    <synonym>(±)-3-hydroxy-2-methylpropanoic acid</synonym>
    <synonym>(±)-3-hydroxy-2-methylpropionic acid</synonym>
    <synonym>2-(Hydroxymethyl)propanoic acid</synonym>
    <synonym>2-(Hydroxymethyl)propionic acid</synonym>
    <synonym>2-Methyl-3-hydroxypropanoic acid</synonym>
    <synonym>2-Methyl-3-hydroxypropionic acid</synonym>
    <synonym>3-HIBA</synonym>
    <synonym>3-Hydroxy-2-methylpropionic acid</synonym>
    <synonym>DL-3-Hydroxyisobutyric acid</synonym>
    <synonym>L-(+)-beta-Hydroxyisobutyric acid</synonym>
    <synonym>L-(+)-Β-hydroxyisobutyric acid</synonym>
    <synonym>beta-Hydroxyisobutyric acid</synonym>
    <synonym>Β-hydroxyisobutyric acid</synonym>
    <synonym>3-Hydroxy-2-isobutyrate</synonym>
    <synonym>3-Hydroxy-2-isobutyric acid</synonym>
    <synonym>(S)-3-Hydroxyisobutyric acid</synonym>
  </synonyms>
  <chemical_formula>C4H8O3</chemical_formula>
  <average_molecular_weight>104.1045</average_molecular_weight>
  <monisotopic_moleculate_weight>104.047344122</monisotopic_moleculate_weight>
  <iupac_name>(2S)-3-hydroxy-2-methylpropanoic acid</iupac_name>
  <traditional_iupac>(S)-3-hydroxyisobutyric acid</traditional_iupac>
  <cas_registry_number>2068-83-9</cas_registry_number>
  <smiles>C[C@@H](CO)C(O)=O</smiles>
  <inchi>InChI=1S/C4H8O3/c1-3(2-5)4(6)7/h3,5H,2H2,1H3,(H,6,7)/t3-/m0/s1</inchi>
  <inchikey>DBXBTMSZEOQQDU-VKHMYHEASA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as beta hydroxy acids and derivatives. Beta hydroxy acids and derivatives are compounds containing a carboxylic acid substituted with a hydroxyl group on the C3 carbon atom.</description>
    <kingdom>Organic compounds</kingdom>
    <super_class>Organic acids and derivatives</super_class>
    <class>Hydroxy acids and derivatives</class>
    <sub_class>Beta hydroxy acids and derivatives</sub_class>
    <direct_parent>Beta hydroxy acids and derivatives</direct_parent>
    <alternative_parents>
      <alternative_parent>Carbonyl compounds</alternative_parent>
      <alternative_parent>Carboxylic acids</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Monocarboxylic acids and derivatives</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Primary alcohols</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Alcohol</substituent>
      <substituent>Aliphatic acyclic compound</substituent>
      <substituent>Beta-hydroxy acid</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Carboxylic acid</substituent>
      <substituent>Carboxylic acid derivative</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Monocarboxylic acid or derivatives</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Primary alcohol</substituent>
    </substituents>
    <molecular_framework>Aliphatic acyclic compounds</molecular_framework>
    <external_descriptors>
      <external_descriptor>3-hydroxyisobutyric acid</external_descriptor>
    </external_descriptors>
  </taxonomy>
  <experimental_properties>
    <state>Solid</state>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>-0.47</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>0.74</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>-0.26</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_acidic</kind>
      <value>4.37</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>-2.7</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>(2S)-3-hydroxy-2-methylpropanoic acid</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>104.1045</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>104.047344122</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>C[C@@H](CO)C(O)=O</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C4H8O3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C4H8O3/c1-3(2-5)4(6)7/h3,5H,2H2,1H3,(H,6,7)/t3-/m0/s1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>DBXBTMSZEOQQDU-VKHMYHEASA-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>23.62</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>9.98</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>
    <pathway>
      <name>Valine, Leucine, and Isoleucine Degradation</name>
      <smpdb_id>SMP0087234</smpdb_id>
      <kegg_map_id/>
    </pathway>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>2764</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>37251</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>149125</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1047055</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1047057</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1047059</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1047060</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>1047062</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrTwoD</type>
      <spectrum_id>930</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::NmrOneD</type>
      <spectrum_id>1037</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>106</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>107</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>108</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>42</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>43</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>44</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>178809</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>178810</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>178811</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>181128</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>181129</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>181130</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2709800</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2709801</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2709802</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2996024</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2996025</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2996026</spectrum_id>
    </spectrum>
  </spectra>
  <normal_concentrations>
  </normal_concentrations>
  <chemspider_id>389707</chemspider_id>
  <kegg_id>C06001</kegg_id>
  <foodb_id>FDB021877</foodb_id>
  <pubchem_compound_id>440873</pubchem_compound_id>
  <chebi_id>37373</chebi_id>
  <pdbe_id/>
  <drugbank_id/>
  <knapsack_id/>
  <meta_cyc_id>CPD-12175</meta_cyc_id>
  <wikipedia_id/>
  <phenol_explorer_compound_id/>
  <bigg_id>37034</bigg_id>
  <metlin_id>483</metlin_id>
  <synthesis_reference>Robison, Robert S.; Doremus, Michael G.L-(+)-b-Hydroxyisobutyric acid by fermentation. U.S.  (1986),   5 pp.</synthesis_reference>
  <general_references>
  </general_references>
  <protein_associations>
    <protein>
      <protein_accession>BMDBP00549</protein_accession>
      <name>3-hydroxyisobutyryl-CoA hydrolase, mitochondrial</name>
      <uniprot_id>Q2HJ73</uniprot_id>
      <gene_name>HIBCH</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
    <protein>
      <protein_accession>BMDBP00550</protein_accession>
      <name>3-hydroxyisobutyrate dehydrogenase, mitochondrial</name>
      <uniprot_id>Q2HJD7</uniprot_id>
      <gene_name>HIBADH</gene_name>
      <protein_type>Enzyme</protein_type>
    </protein>
  </protein_associations>
</metabolite>
