<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:10:58 UTC</creation_date>
  <update_date>2025-11-19 00:38:42 UTC</update_date>
  <accession>FDB013905</accession>
  <name>1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-1-penten-3-one</name>
  <description>Flavouring ingredient</description>
  <synonyms>
    <synonym>(1E)-1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)-1-penten-3-one</synonym>
    <synonym>(E)-1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)pent-1-en-3-one</synonym>
    <synonym>1-(2,6,6-Trimethyl-2-cyclohexen-1-yl)pent-1-en-3-one</synonym>
    <synonym>1-(2,6,6-Trimethyl-2-cyclohexene-1-yl)-1-penten-3-one</synonym>
    <synonym>1-2,6,6-Trimethylcyclohex-2-en-1-yl</synonym>
    <synonym>1-2,6,6-Trimethylcyclohex-2-en-1-yl;pent-1-en-3-one</synonym>
    <synonym>1-Methyl-a-ionone</synonym>
    <synonym>1-Penten-3-one, 1-(2,6,6-trimethyl-2-cyclohexen-1-yl)-</synonym>
    <synonym>5-(2,6,6-Trimethyl-2-cyclohexenyl)-4-penten-3-one</synonym>
    <synonym>6-Methylionone</synonym>
    <synonym>alpha-Cetone</synonym>
    <synonym>alpha-Methylionone</synonym>
    <synonym>Cetone, alpha-</synonym>
    <synonym>FEMA 2711</synonym>
    <synonym>Ionone, methyl-</synonym>
    <synonym>Methyl-ionone</synonym>
    <synonym>Methylionone</synonym>
    <synonym>Methylionone, alpha-</synonym>
    <synonym>n-Methyl-a-ionone</synonym>
  </synonyms>
  <chemical_formula>C14H22O</chemical_formula>
  <average_molecular_weight>206.3239</average_molecular_weight>
  <monisotopic_moleculate_weight>206.167065326</monisotopic_moleculate_weight>
  <iupac_name>(1E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)pent-1-en-3-one</iupac_name>
  <traditional_iupac>irone</traditional_iupac>
  <cas_registry_number>127-42-4</cas_registry_number>
  <smiles>CCC(=O)\C=C\C1C(C)=CCCC1(C)C</smiles>
  <inchi>InChI=1S/C14H22O/c1-5-12(15)8-9-13-11(2)7-6-10-14(13,3)4/h7-9,13H,5-6,10H2,1-4H3/b9-8+</inchi>
  <inchikey>VPKMGDRERYMTJX-CMDGGOBGSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as sesquiterpenoids. These are terpenes with three consecutive isoprene units.</description>
    <direct_parent>Sesquiterpenoids</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 homomonocyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>Acryloyl compounds</alternative_parent>
      <alternative_parent>Enones</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Ketones</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Acryloyl-group</substituent>
      <substituent>Aliphatic homomonocyclic compound</substituent>
      <substituent>Alpha,beta-unsaturated ketone</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Cyclofarsesane sesquiterpenoid</substituent>
      <substituent>Enone</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Ionone derivative</substituent>
      <substituent>Ketone</substituent>
      <substituent>Megastigmane sesquiterpenoid</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Sesquiterpenoid</substituent>
    </substituents>
    <external_descriptors>
    </external_descriptors>
  </taxonomy>
  <state/>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>4.57</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-3.85</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>2.92e-02 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>4.02</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-5</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>(1E)-1-(2,6,6-trimethylcyclohex-2-en-1-yl)pent-1-en-3-one</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>206.3239</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>206.167065326</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>CCC(=O)\C=C\C1C(C)=CCCC1(C)C</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C14H22O</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C14H22O/c1-5-12(15)8-9-13-11(2)7-6-10-14(13,3)4/h7-9,13H,5-6,10H2,1-4H3/b9-8+</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>VPKMGDRERYMTJX-CMDGGOBGSA-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>66.72</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>25.05</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>3</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::CMs</type>
      <spectrum_id>26467</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>165013</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>324685</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>324686</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>324687</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>373156</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>373157</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>373158</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2425423</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2425424</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2425425</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2510386</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2510387</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2510388</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>6883</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsIr</type>
      <spectrum_id>6884</spectrum_id>
    </spectrum>
  </spectra>
  <hmdb_id>HMDB35245</hmdb_id>
  <pubchem_compound_id/>
  <chemspider_id/>
  <kegg_id/>
  <chebi_id/>
  <biocyc_id/>
  <het_id/>
  <wikipidia/>
  <vmh_id/>
  <fbonto_id/>
  <foodb_id/>
  <general_references>
    <reference>#&lt;Reference:0x000055ce31faa2f8&gt;</reference>
    <reference>#&lt;Reference:0x000055ce31faa140&gt;</reference>
    <reference>#&lt;Reference:0x000055ce31fa9f60&gt;</reference>
    <reference>#&lt;Reference:0x000055ce31fa9d58&gt;</reference>
    <reference>#&lt;Reference:0x000055ce31fa9ba0&gt;</reference>
    <reference>#&lt;Reference:0x000055ce31fa99c0&gt;</reference>
  </general_references>
  <foods>
  </foods>
  <flavors>
    <flavor>
      <name>floral</name>
    </flavor>
    <flavor>
      <name>fruity</name>
    </flavor>
    <flavor>
      <name>orris</name>
    </flavor>
    <flavor>
      <name>powdery</name>
    </flavor>
    <flavor>
      <name>sweet</name>
    </flavor>
    <flavor>
      <name>violet</name>
    </flavor>
    <flavor>
      <name>woody</name>
    </flavor>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
