<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2011-09-21 00:36:12 UTC</creation_date>
  <update_date>2015-07-21 06:57:55 UTC</update_date>
  <accession>FDB023877</accession>
  <name>4-Oxo-retinoic acid</name>
  <description>4-oxo-Retinoic acid is a biologically active geometric isomer of retinoic acid (RA). 4-oxo-retinoic acid is generated from its precursor canthaxanthin and enhances gap junctional communication in cells. Metabolic transformation of all-trans RA to 4-hydroxylated RA appears to be primarily catalyzed by the cytochrome P 450 (CYP) 26AI in human skin cells. Cellular levels of all-trans RA are meticulously regulated utilizing an array of systems to balance uptake, biosynthesis, catabolism, and efflux transport.  RA is a critical regulator of gene expression during embryonic development and in the maintenance of adult epithelial tissues. (PMID: 8794203, 7893159, 17330217, 16778795, 17460545) [HMDB]</description>
  <synonyms>
    <synonym>4-keto-Retinoate</synonym>
    <synonym>4-keto-Retinoic acid</synonym>
    <synonym>4-Ketoretinoate</synonym>
    <synonym>4-Ketoretinoic acid</synonym>
    <synonym>4-Oxo-all-trans-retinoate</synonym>
    <synonym>4-Oxo-all-trans-retinoic acid</synonym>
    <synonym>4-Oxoretinoate</synonym>
    <synonym>4-Oxoretinoic acid</synonym>
    <synonym>4-Oxotretinoin</synonym>
    <synonym>all-trans-4-Oxoretinoate</synonym>
    <synonym>all-trans-4-Oxoretinoic acid</synonym>
    <synonym>Ro 11-4824</synonym>
    <synonym>Ro 12-4824</synonym>
  </synonyms>
  <chemical_formula>C20H26O3</chemical_formula>
  <average_molecular_weight>314.4186</average_molecular_weight>
  <monisotopic_moleculate_weight>314.188194698</monisotopic_moleculate_weight>
  <iupac_name>(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-3-oxocyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoic acid</iupac_name>
  <traditional_iupac>4-oxo-retinoic acid</traditional_iupac>
  <cas_registry_number>38030-57-8</cas_registry_number>
  <smiles>C\C(\C=C\C1=C(C)C(=O)CCC1(C)C)=C/C=C/C(/C)=C/C(O)=O</smiles>
  <inchi>InChI=1S/C20H26O3/c1-14(7-6-8-15(2)13-19(22)23)9-10-17-16(3)18(21)11-12-20(17,4)5/h6-10,13H,11-12H2,1-5H3,(H,22,23)/b8-6+,10-9+,14-7+,15-13+</inchi>
  <inchikey>GGCUJPCCTQNTJF-FRCNGJHJSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as retinoids. These are oxygenated derivatives of 3,7-dimethyl-1-(2,6,6-trimethylcyclohex-1-enyl)nona-1,3,5,7-tetraene and derivatives thereof.</description>
    <direct_parent>Retinoids</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Lipids and lipid-like molecules</super_class>
    <class>Prenol lipids</class>
    <sub_class>Retinoids</sub_class>
    <molecular_framework>Aliphatic homomonocyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>Carboxylic acids</alternative_parent>
      <alternative_parent>Cyclohexenones</alternative_parent>
      <alternative_parent>Diterpenoids</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Medium-chain fatty acids</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>Unsaturated fatty acids</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>Aliphatic homomonocyclic compound</substituent>
      <substituent>Branched fatty acid</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Carboxylic acid</substituent>
      <substituent>Carboxylic acid derivative</substituent>
      <substituent>Cyclic ketone</substituent>
      <substituent>Cyclohexenone</substituent>
      <substituent>Diterpenoid</substituent>
      <substituent>Fatty acid</substituent>
      <substituent>Fatty acyl</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Ketone</substituent>
      <substituent>Medium-chain 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>Retinoic acid</substituent>
      <substituent>Retinoid skeleton</substituent>
      <substituent>Unsaturated fatty acid</substituent>
    </substituents>
    <external_descriptors>
      <external_descriptor>Retinoids</external_descriptor>
      <external_descriptor>Retinoids</external_descriptor>
      <external_descriptor>retinoid</external_descriptor>
    </external_descriptors>
  </taxonomy>
  <state>Solid</state>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>4.94</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-4.71</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>6.20e-03 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>4.35</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_acidic</kind>
    <value>5</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-4.8</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-3-oxocyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoic acid</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>314.4186</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>314.188194698</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>C\C(\C=C\C1=C(C)C(=O)CCC1(C)C)=C/C=C/C(/C)=C/C(O)=O</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C20H26O3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C20H26O3/c1-14(7-6-8-15(2)13-19(22)23)9-10-17-16(3)18(21)11-12-20(17,4)5/h6-10,13H,11-12H2,1-5H3,(H,22,23)/b8-6+,10-9+,14-7+,15-13+</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>GGCUJPCCTQNTJF-FRCNGJHJSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>54.37</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>98.48</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>36.62</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>5</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>acceptor_count</kind>
    <value>3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>donor_count</kind>
    <value>1</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>
    <pathway>
      <name>Retinol Metabolism</name>
      <smpdb_id>SMP00074</smpdb_id>
      <kegg_map_id>map00830</kegg_map_id>
    </pathway>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>20441</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>38994</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>156600</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>46329</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>46330</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>46331</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>158880</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>158881</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>158882</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2319884</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2319885</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2319886</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2618339</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2618340</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>2618341</spectrum_id>
    </spectrum>
  </spectra>
  <hmdb_id>HMDB06285</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:0x000055ce323e7f50&gt;</reference>
    <reference>#&lt;Reference:0x000055ce323e7d98&gt;</reference>
    <reference>#&lt;Reference:0x000055ce323e7be0&gt;</reference>
    <reference>#&lt;Reference:0x000055ce323e7a28&gt;</reference>
    <reference>#&lt;Reference:0x000055ce323e7870&gt;</reference>
  </general_references>
  <foods>
    <food>
      <name>Anatidae</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Anatidae</name_scientific>
      <ncbi_taxonomy_id>8830</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Beefalo</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Bos taurus X Bison bison</name_scientific>
      <ncbi_taxonomy_id>297284</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Bison</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Bison bison</name_scientific>
      <ncbi_taxonomy_id>9901</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Buffalo</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Bubalus bubalis</name_scientific>
      <ncbi_taxonomy_id>89462</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Cattle (Beef, Veal)</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Bos taurus</name_scientific>
      <ncbi_taxonomy_id>9913</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Chicken</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Gallus gallus</name_scientific>
      <ncbi_taxonomy_id>9031</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Columbidae (Dove, Pigeon)</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Columbidae</name_scientific>
      <ncbi_taxonomy_id>8930</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Deer</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cervidae</name_scientific>
      <ncbi_taxonomy_id>9850</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Domestic goat</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Capra aegagrus hircus</name_scientific>
      <ncbi_taxonomy_id>9925</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Domestic pig</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Sus scrofa domestica</name_scientific>
      <ncbi_taxonomy_id>9825</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Elk</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Cervus canadensis</name_scientific>
      <ncbi_taxonomy_id>1574408</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Emu</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Dromaius novaehollandiae</name_scientific>
      <ncbi_taxonomy_id>8790</ncbi_taxonomy_id>
    </food>
    <food>
      <name>European rabbit</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Oryctolagus</name_scientific>
      <ncbi_taxonomy_id>9984</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Greylag goose</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Anser anser</name_scientific>
      <ncbi_taxonomy_id>8843</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Guinea hen</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Numida meleagris</name_scientific>
      <ncbi_taxonomy_id>8996</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Horse</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Equus caballus</name_scientific>
      <ncbi_taxonomy_id>9796</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Mallard duck</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Anas platyrhynchos</name_scientific>
      <ncbi_taxonomy_id>8839</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Mountain hare</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Lepus timidus</name_scientific>
      <ncbi_taxonomy_id>62621</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Mule deer</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Odocoileus</name_scientific>
      <ncbi_taxonomy_id>9871</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Ostrich</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Struthio camelus</name_scientific>
      <ncbi_taxonomy_id>8801</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Pheasant</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Phasianus colchicus</name_scientific>
      <ncbi_taxonomy_id>9054</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Quail</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Phasianidae</name_scientific>
      <ncbi_taxonomy_id>9005</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Rabbit</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Leporidae</name_scientific>
      <ncbi_taxonomy_id>9979</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Rock ptarmigan</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Lagopus muta</name_scientific>
      <ncbi_taxonomy_id>64668</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Sheep (Mutton, Lamb)</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Ovis aries</name_scientific>
      <ncbi_taxonomy_id>9940</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Squab</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Columba</name_scientific>
      <ncbi_taxonomy_id>8931</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Turkey</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Meleagris gallopavo</name_scientific>
      <ncbi_taxonomy_id>9103</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Velvet duck</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Melanitta fusca</name_scientific>
      <ncbi_taxonomy_id>371864</ncbi_taxonomy_id>
    </food>
    <food>
      <name>Wild boar</name>
      <food_type>Type 1</food_type>
      <category>specific</category>
      <name_scientific>Sus scrofa</name_scientific>
      <ncbi_taxonomy_id>9823</ncbi_taxonomy_id>
    </food>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
