<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:11:19 UTC</creation_date>
  <update_date>2025-11-19 00:47:25 UTC</update_date>
  <accession>FDB014519</accession>
  <name>Fenchone</name>
  <description>Fenchone is a natural organic compound classified as a monoterpene and a ketone. It is a colorless oily liquid. It has a structure and an odor similar to camphor. Fenchone is a constituent of absinthe and the essential oil of fennel. Fenchone is used as a flavor in foods and in perfumery. Only 2 stereoisomers are possible: D-fenchone (enantiomer 1S,4R is dextrogyre (+)) and L-fenchone (enantiomer 1R,4S is levogyre (-)). Due to the small size of the cycle, the 2 other diastereoisomers (1S4S and 1R4R) are not possible. [Wikipedia]. Fenchone is found in many foods, some of which are ceylon cinnamon, sweet basil, saffron, and dill.</description>
  <synonyms>
    <synonym>1,3,3-Trimethylbicyclo[2.2.1]heptan-2-one, 9CI</synonym>
    <synonym>Fenchol (obsol.)</synonym>
  </synonyms>
  <chemical_formula>C10H16O</chemical_formula>
  <average_molecular_weight>152.2334</average_molecular_weight>
  <monisotopic_moleculate_weight>152.120115134</monisotopic_moleculate_weight>
  <iupac_name>1,3,3-trimethylbicyclo[2.2.1]heptan-2-one</iupac_name>
  <traditional_iupac>fenchone</traditional_iupac>
  <cas_registry_number>1195-79-5</cas_registry_number>
  <smiles>CC1(C)C2CCC(C)(C2)C1=O</smiles>
  <inchi>InChI=1S/C10H16O/c1-9(2)7-4-5-10(3,6-7)8(9)11/h7H,4-6H2,1-3H3</inchi>
  <inchikey>LHXDLQBQYFFVNW-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as bicyclic monoterpenoids. These are monoterpenoids containing exactly 2 rings, which are fused to each other.</description>
    <direct_parent>Bicyclic monoterpenoids</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Lipids and lipid-like molecules</super_class>
    <class>Prenol lipids</class>
    <sub_class>Monoterpenoids</sub_class>
    <molecular_framework>Aliphatic homopolycyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Ketones</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Aliphatic homopolycyclic compound</substituent>
      <substituent>Bicyclic monoterpenoid</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Fenchane monoterpenoid</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Ketone</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organooxygen compound</substituent>
    </substituents>
    <external_descriptors>
      <external_descriptor>Bicyclic monoterpenoids</external_descriptor>
      <external_descriptor>Bicyclic monoterpenoids</external_descriptor>
      <external_descriptor>Cyclic monoterpenes</external_descriptor>
      <external_descriptor>a small molecule</external_descriptor>
      <external_descriptor>carbobicyclic compound</external_descriptor>
      <external_descriptor>cyclic terpene ketone</external_descriptor>
      <external_descriptor>fenchane monoterpenoid</external_descriptor>
    </external_descriptors>
  </taxonomy>
  <state/>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>2.54</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-2.24</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>8.83e-01 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>3.06</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-7.6</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>1,3,3-trimethylbicyclo[2.2.1]heptan-2-one</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>152.2334</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>152.120115134</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>CC1(C)C2CCC(C)(C2)C1=O</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C10H16O</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C10H16O/c1-9(2)7-4-5-10(3,6-7)8(9)11/h7H,4-6H2,1-3H3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>LHXDLQBQYFFVNW-UHFFFAOYSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>17.07</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>44.54</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>17.85</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>donor_count</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>physiological_charge</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formal_charge</kind>
    <value>0</value>
    <source>ChemAxon</source>
  </property>
  <pathways>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>6760</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>6761</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::EiMs</type>
      <spectrum_id>1971</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>20990</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>27294</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>28426</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>101668</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>101669</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>103758</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>162129</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>81477</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>81478</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>81479</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>142593</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>142594</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>142595</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2779621</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2779622</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2779623</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2903199</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2903200</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2903201</spectrum_id>
    </spectrum>
  </spectra>
  <hmdb_id>HMDB0034985</hmdb_id>
  <pubchem_compound_id/>
  <chemspider_id/>
  <kegg_id/>
  <chebi_id>4999</chebi_id>
  <biocyc_id/>
  <het_id/>
  <wikipidia/>
  <vmh_id/>
  <fbonto_id/>
  <foodb_id/>
  <general_references>
  </general_references>
  <foods>
    <food>
      <name>Anise</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Pimpinella anisum</name_scientific>
      <ncbi_taxonomy_id>271192</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Ceylon cinnamon</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cinnamomum verum</name_scientific>
      <ncbi_taxonomy_id>128608</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Chinese cinnamon</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cinnamomum aromaticum</name_scientific>
      <ncbi_taxonomy_id>119260</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Cloves</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Syzygium aromaticum</name_scientific>
      <ncbi_taxonomy_id>219868</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Dill</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Anethum graveolens</name_scientific>
      <ncbi_taxonomy_id>40922</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Fennel</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Foeniculum vulgare</name_scientific>
      <ncbi_taxonomy_id>48038</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Rosemary</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Rosmarinus officinalis</name_scientific>
      <ncbi_taxonomy_id>39367</ncbi_taxonomy_id>
      <average_value>25.0</average_value>
      <max_value>25.0</max_value>
      <min_value>25.0</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Saffron</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Crocus sativus</name_scientific>
      <ncbi_taxonomy_id>82528</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Star anise</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Illicium verum</name_scientific>
      <ncbi_taxonomy_id>124778</ncbi_taxonomy_id>
      <average_value>0.1</average_value>
      <max_value>0.1</max_value>
      <min_value>0.1</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Sweet basil</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Ocimum basilicum</name_scientific>
      <ncbi_taxonomy_id>39350</ncbi_taxonomy_id>
      <average_value>3.0</average_value>
      <max_value>3.0</max_value>
      <min_value>3.0</min_value>
      <unit>mg/100 g</unit>
    </food>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
    <health_effect>
      <name>Anti cholinesterase</name>
      <id>184</id>
      <definition>An EC 3.1.1.* (carboxylic ester hydrolase) inhibitor that interferes with the action of cholinesterase (EC 3.1.1.8).</definition>
    </health_effect>
    <health_effect>
      <name>Anti-Alzheimeran</name>
      <id>105</id>
      <definition>Any substance introduced into a living organism with therapeutic or diagnostic purpose.</definition>
    </health_effect>
    <health_effect>
      <name>Counterirritant</name>
      <id>839</id>
      <definition/>
    </health_effect>
    <health_effect>
      <name>Name</name>
      <id>936</id>
      <definition>A substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell.</definition>
    </health_effect>
    <health_effect>
      <name>Perfumery</name>
      <id>1206</id>
      <definition>A substance, extract, or preparation for diffusing or imparting an agreeable or attractive smell.</definition>
    </health_effect>
    <health_effect>
      <name>Secretolytic</name>
      <id>1309</id>
      <definition/>
    </health_effect>
  </health_effects>
</compound>
