<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:04:56 UTC</creation_date>
  <update_date>2025-11-18 22:30:27 UTC</update_date>
  <accession>FDB001348</accession>
  <name>Isohumulinone A</name>
  <description>Bitter principle present in beer. Isohumulinone A is found in alcoholic beverages.</description>
  <synonyms>
  </synonyms>
  <chemical_formula>C21H30O6</chemical_formula>
  <average_molecular_weight>378.4593</average_molecular_weight>
  <monisotopic_moleculate_weight>378.204238692</monisotopic_moleculate_weight>
  <iupac_name>1,2,3,6-tetrahydroxy-9,9-dimethyl-4-(3-methylbutanoyl)-10-(propan-2-ylidene)tricyclo[6.3.0.0²,⁶]undec-3-en-5-one</iupac_name>
  <traditional_iupac>1,2,3,6-tetrahydroxy-9,9-dimethyl-4-(3-methylbutanoyl)-10-(propan-2-ylidene)tricyclo[6.3.0.0²,⁶]undec-3-en-5-one</traditional_iupac>
  <cas_registry_number>83680-60-8</cas_registry_number>
  <smiles>CC(C)CC(=O)C1=C(O)C2(O)C3(O)CC(=C(C)C)C(C)(C)C3CC2(O)C1=O</smiles>
  <inchi>InChI=1S/C21H30O6/c1-10(2)7-13(22)15-16(23)20(26)9-14-18(5,6)12(11(3)4)8-19(14,25)21(20,27)17(15)24/h10,14,24-27H,7-9H2,1-6H3</inchi>
  <inchikey>WDCHYVUCXSBTMH-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as linear triquinanes. These are triquinane with a structure based on a [6.3.0.0^2,6] undecane carbon skeleton.</description>
    <direct_parent>Linear triquinanes</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Lipids and lipid-like molecules</super_class>
    <class>Prenol lipids</class>
    <sub_class>Sesquiterpenoids</sub_class>
    <molecular_framework>Aliphatic homopolycyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>Cyclic alcohols and derivatives</alternative_parent>
      <alternative_parent>Enols</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Ketones</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Polyols</alternative_parent>
      <alternative_parent>Tertiary alcohols</alternative_parent>
      <alternative_parent>Vinylogous acids</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Alcohol</substituent>
      <substituent>Aliphatic homopolycyclic compound</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Cyclic alcohol</substituent>
      <substituent>Enol</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Ketone</substituent>
      <substituent>Linear triquinane sesquiterpenoid</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Polyol</substituent>
      <substituent>Tertiary alcohol</substituent>
      <substituent>Vinylogous acid</substituent>
    </substituents>
    <external_descriptors>
    </external_descriptors>
  </taxonomy>
  <state/>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>1.26</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-2.66</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>8.37e-01 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
    <property>
      <kind>melting_point</kind>
      <value>Mp 202-204°</value>
    </property>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>1.57</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_acidic</kind>
    <value>0.34</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-3.6</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>1,2,3,6-tetrahydroxy-9,9-dimethyl-4-(3-methylbutanoyl)-10-(propan-2-ylidene)tricyclo[6.3.0.0²,⁶]undec-3-en-5-one</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>378.4593</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>378.204238692</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>CC(C)CC(=O)C1=C(O)C2(O)C3(O)CC(=C(C)C)C(C)(C)C3CC2(O)C1=O</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C21H30O6</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C21H30O6/c1-10(2)7-13(22)15-16(23)20(26)9-14-18(5,6)12(11(3)4)8-19(14,25)21(20,27)17(15)24/h10,14,24-27H,7-9H2,1-6H3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>WDCHYVUCXSBTMH-UHFFFAOYSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>115.06</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>101.23</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>40.4</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>6</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>donor_count</kind>
    <value>4</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>
  <pathways>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>23385</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>41716</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>131753</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>139487</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>86361</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>86362</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>86363</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>148641</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>148642</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>148643</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2431921</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2431922</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2431923</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2503313</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2503314</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2503315</spectrum_id>
    </spectrum>
  </spectra>
  <hmdb_id>HMDB0030045</hmdb_id>
  <pubchem_compound_id/>
  <chemspider_id/>
  <kegg_id/>
  <chebi_id/>
  <biocyc_id/>
  <het_id/>
  <wikipidia/>
  <vmh_id/>
  <fbonto_id/>
  <foodb_id/>
  <general_references>
  </general_references>
  <foods>
    <food>
      <name>Alcoholic beverages</name>
      <food_type>Unknown</food_type>
      <category>generic</category>
      <name_scientific/>
      <ncbi_taxonomy_id/>
    </food>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
