<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2010-04-08 22:09:23 UTC</creation_date>
  <update_date>2019-11-26 03:04:24 UTC</update_date>
  <accession>FDB010971</accession>
  <name>4-Hydroxy-2H-1-benzopyran-2-one</name>
  <description>4-hydroxycoumarin is an important fungal metabolite from the precursor coumarin, and its production leads to further fermentative production of the natural anticoagulant dicoumarol. 4-Hydroxy-2H-1-benzopyran-2-one is found in beer and grape wine.</description>
  <synonyms>
    <synonym>2-Hydroxy-4H-1-benzopyran-4-one</synonym>
    <synonym>2-Hydroxychromone</synonym>
    <synonym>2H-1-Benzopyran-2-one, 4-hydroxy-</synonym>
    <synonym>2H-1-Benzopyran-2,4(3H)-dione</synonym>
    <synonym>3-(4-Hydroxyphenyl)-1-propane</synonym>
    <synonym>3-OHPP</synonym>
    <synonym>4-Coumarinol</synonym>
    <synonym>4-Hydroxy-2H-chromen-2-one</synonym>
    <synonym>4-Hydroxycinnamyl alcohol</synonym>
    <synonym>4-Hydroxycoumarin</synonym>
    <synonym>4-Hydroxycoumarine</synonym>
    <synonym>Benzotetronate</synonym>
    <synonym>Benzotetronic acid</synonym>
    <synonym>Coumarin, 4-hydroxy-</synonym>
    <synonym>Hydroxy coumarin</synonym>
    <synonym>P-Coumaryl alcohol</synonym>
  </synonyms>
  <chemical_formula>C9H6O3</chemical_formula>
  <average_molecular_weight>162.144</average_molecular_weight>
  <monisotopic_moleculate_weight>162.031694053</monisotopic_moleculate_weight>
  <iupac_name>2-hydroxy-4H-chromen-4-one</iupac_name>
  <traditional_iupac>4-hydroxycoumarin</traditional_iupac>
  <cas_registry_number>1076-38-6</cas_registry_number>
  <smiles>OC1=CC(=O)C2=CC=CC=C2O1</smiles>
  <inchi>InChI=1S/C9H6O3/c10-7-5-9(11)12-8-4-2-1-3-6(7)8/h1-5,11H</inchi>
  <inchikey>OWBBAPRUYLEWRR-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <description> belongs to the class of organic compounds known as coumarins and derivatives. These are polycyclic aromatic compounds containing a 1-benzopyran moiety with a ketone group at the C2 carbon atom (1-benzopyran-2-one).</description>
    <direct_parent>Coumarins and derivatives</direct_parent>
    <kingdom>Organic compounds</kingdom>
    <super_class>Phenylpropanoids and polyketides</super_class>
    <class>Coumarins and derivatives</class>
    <sub_class/>
    <molecular_framework>Aromatic heteropolycyclic compounds</molecular_framework>
    <alternative_parents>
      <alternative_parent>Benzenoids</alternative_parent>
      <alternative_parent>Chromones</alternative_parent>
      <alternative_parent>Heteroaromatic compounds</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Organooxygen compounds</alternative_parent>
      <alternative_parent>Oxacyclic compounds</alternative_parent>
      <alternative_parent>Pyranones and derivatives</alternative_parent>
      <alternative_parent>Vinylogous acids</alternative_parent>
    </alternative_parents>
    <substituents>
      <substituent>1-benzopyran</substituent>
      <substituent>Aromatic heteropolycyclic compound</substituent>
      <substituent>Benzenoid</substituent>
      <substituent>Benzopyran</substituent>
      <substituent>Chromone</substituent>
      <substituent>Coumarin</substituent>
      <substituent>Heteroaromatic compound</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organoheterocyclic compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Oxacycle</substituent>
      <substituent>Pyran</substituent>
      <substituent>Pyranone</substituent>
      <substituent>Vinylogous acid</substituent>
    </substituents>
    <external_descriptors>
      <external_descriptor>an aromatic compound</external_descriptor>
    </external_descriptors>
  </taxonomy>
  <state>Solid</state>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>0.75</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-1.66</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>3.55e+00 g/l</value>
      <source>ALOGPS</source>
    </property>
  </predicted_properties>
  <experimental_properties>
    <property>
      <kind>melting_point</kind>
      <value>Mp 232-233°</value>
    </property>
  </experimental_properties>
  <property>
    <kind>logp</kind>
    <value>1.81</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_acidic</kind>
    <value>5.48</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>pka_strongest_basic</kind>
    <value>-5.5</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>iupac</kind>
    <value>2-hydroxy-4H-chromen-4-one</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>average_mass</kind>
    <value>162.144</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>mono_mass</kind>
    <value>162.031694053</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>smiles</kind>
    <value>OC1=CC(=O)C2=CC=CC=C2O1</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>formula</kind>
    <value>C9H6O3</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchi</kind>
    <value>InChI=1S/C9H6O3/c10-7-5-9(11)12-8-4-2-1-3-6(7)8/h1-5,11H</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>inchikey</kind>
    <value>OWBBAPRUYLEWRR-UHFFFAOYSA-N</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polar_surface_area</kind>
    <value>46.53</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>refractivity</kind>
    <value>52.57</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>polarizability</kind>
    <value>15.32</value>
    <source>ChemAxon</source>
  </property>
  <property>
    <kind>rotatable_bond_count</kind>
    <value>0</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>
  </pathways>
  <spectra>
    <spectrum>
      <type>Specdb::CMs</type>
      <spectrum_id>5915</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>77358</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>77359</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>77360</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>137463</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>137464</spectrum_id>
    </spectrum>
    <spectrum>
      <type>Specdb::MsMs</type>
      <spectrum_id>137465</spectrum_id>
    </spectrum>
  </spectra>
  <hmdb_id>HMDB03654</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:0x000055ce327ae850&gt;</reference>
    <reference>#&lt;Reference:0x000055ce327ae648&gt;</reference>
    <reference>#&lt;Reference:0x000055ce327ae440&gt;</reference>
    <reference>#&lt;Reference:0x000055ce327ae238&gt;</reference>
  </general_references>
  <foods>
    <food>
      <name>Beer</name>
      <food_type>Type 2</food_type>
      <category>specific</category>
      <name_scientific/>
      <ncbi_taxonomy_id/>
      <average_value>0.1135</average_value>
      <max_value>0.113499999</max_value>
      <min_value>0.113499999</min_value>
      <unit>mg/100 g</unit>
    </food>
    <food>
      <name>Grape wine</name>
      <food_type>Type 2</food_type>
      <category>specific</category>
      <name_scientific/>
      <ncbi_taxonomy_id/>
      <average_value>0.158</average_value>
      <max_value>0.316</max_value>
      <min_value>0.0</min_value>
      <unit>mg/100 g</unit>
    </food>
  </foods>
  <flavors>
  </flavors>
  <enzymes>
    <enzyme>
      <name>Peroxiredoxin-6</name>
      <uniprot_id>P30041</uniprot_id>
      <uniprot_name/>
      <gene_name>PRDX6</gene_name>
    </enzyme>
  </enzymes>
  <health_effects>
  </health_effects>
</compound>
