<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2026-03-26 22:04:13 UTC</creation_date>
  <update_date>2026-05-20 20:04:47 UTC</update_date>
  <accession/>
  <common_name>(R,S)-Equol</common_name>
  <class>SmallMolecule</class>
  <description>(R,S)-Equol is an organic compound with the formula C15H14O3 and an average molecular weight of 242.27 g/mol. (R,S)-Equol belongs to the isoflavans, a subclass of isoflavonoids within the organic compounds.

The compound is found in or released from 15 recorded sources across multiple sectors. In the Electrical &amp; Electronic Equipment sector, it is associated with capacitors, batteries, cell phones, printed circuit boards, wires and cables, and two additional sources. Within the Food, food processing &amp; cookware sector, it is found in food packaging and the preparation of wort. It is also present in textiles, leather &amp; furnishings, specifically in carpets, rugs, and synthetic textiles. Further recorded sources include medical devices in the healthcare, pharmaceuticals &amp; veterinary products sector, and lubricants within both the energy, oil &amp; gas and industrial manufacturing &amp; chemical processing sectors. One additional sector is also recorded. Exposure to (R,S)-Equol can occur through oral, inhalation, and touch routes.</description>
  <categories/>
  <types>
    <type>PFAS</type>
    <type>Phytotoxin</type>
  </types>
  <synonyms>
    <synonym>(+/-)-3,4-Dihydro-3-(4-Hydroxyphenyl)-2H-chromen-7-ol, (+/-)-Equol</synonym>
    <synonym>(+/-)-7-Hydroxy-3-(4-hydroxyphenyl)chroman</synonym>
    <synonym>(+/-)-Equol</synonym>
    <synonym>(+/-)-Equol (GMP)</synonym>
    <synonym>(3S)-3-(4-hydroxyphenyl)-3,4-dihydro-2H-chromen-7-ol</synonym>
    <synonym>(7,4'-Isoflavandiol)</synonym>
    <synonym>(?)-Equol</synonym>
    <synonym>(?)-Equol, 98%  [531-95-3]</synonym>
    <synonym>(Ãƒâ€šÃ‚Â±)-Equol</synonym>
    <synonym>(ÃƒÆ’Ã‚Â±)-Equol</synonym>
    <synonym>(ÃƒÆ’Ã‚â€šÃƒâ€šÃ‚Â±)-Equol</synonym>
    <synonym>(R)-Equol</synonym>
    <synonym>(R,S)-Equol</synonym>
    <synonym>(R,S)-Equol &gt;99%</synonym>
    <synonym>(rac)-Equol</synonym>
    <synonym>(RS)-Equol</synonym>
    <synonym>(S)-3,4-Dihydro-3-(4-hydroxyphenyl)-2H-1-benzopyran-7-ol</synonym>
    <synonym>(S)-3-(4-Hydroxy-phenyl)-chroman-7-ol</synonym>
    <synonym>(S)-3-(4-Hydroxyphenyl)chroman-7-ol</synonym>
    <synonym>2H-1-Benzopyran-7-ol, 3,4-dihydro-3-(4-hydroxyphenyl)-</synonym>
    <synonym>3,4-Dihydro-3-(4-hydroxyphenyl)-(S)-2H-1-benzopyran-7-ol</synonym>
    <synonym>3,4-Dihydro-3-(4-hydroxyphenyl)-2H-1-benzopyran-7-ol</synonym>
    <synonym>3,4-Dihydro-3-(4-hydroxyphenyl)-2H-chromen-7-ol</synonym>
    <synonym>3,4-Dihydro-3-(4-hydroxyphenyl)-2H-chromen-7-ol, (+/-)-Equol, 4',7-Isoflavandiol, 7-Hydroxy-3-(4-hydroxyphenyl)chroman</synonym>
    <synonym>3,?4-?DIHYDRO-?3-?(4-?HYDROXYPHENYL)-?2H-?1-?BENZOPYRAN-?7-?OL</synonym>
    <synonym>3-(4-Hydroxy-phenyl)-chroman-7-ol</synonym>
    <synonym>3-(4-Hydroxyphenyl)-3,4-dihydro-2H-chromen-7-ol</synonym>
    <synonym>3-(4-Hydroxyphenyl)-7-chromanol</synonym>
    <synonym>3-(4-Hydroxyphenyl)chroman-7-ol</synonym>
    <synonym>4',7-Dihydroxyflavandiol</synonym>
    <synonym>4',7-Dihydroxyisoflavan</synonym>
    <synonym>4',7-Dihydroxyisoflavane</synonym>
    <synonym>4',7-Isoflavandiol</synonym>
    <synonym>4',7-Isoflavandiol, (+/-)-Equol</synonym>
    <synonym>4',7-Isoflavanediol</synonym>
    <synonym>4?,7-Isoflavandiol</synonym>
    <synonym>4ÃƒÆ’Ã‚Â¢ÃƒÂ¢Ã‚â€šÃ‚Â¬Ãƒâ€šÃ‚Â²,7-Dihydroxyisoflavane</synonym>
    <synonym>531-95-3 (S-isomer)</synonym>
    <synonym>7,4'-Homoisoflavane</synonym>
    <synonym>7-Hydroxy-3-(4-hydroxyphenyl)chroman</synonym>
    <synonym>ADFCQWZHKCXPAJ-UHFFFAOYSA-N</synonym>
    <synonym>AMILORIDE MIXTURE WITH HYDROCHLOROTHIAZIDE</synonym>
    <synonym>Equol</synonym>
    <synonym>EQUOL, (+/-)-</synonym>
    <synonym>EQUOL,(+/-)-(SH)</synonym>
    <synonym>R,S-Equol</synonym>
    <synonym>UNII:2RZ8A7D0E8</synonym>
    <synonym>[94105-90-5]</synonym>
  </synonyms>
  <chemical_formula>C15H14O3</chemical_formula>
  <average_molecular_weight>242.274</average_molecular_weight>
  <monisotopic_moleculate_weight>242.094294</monisotopic_moleculate_weight>
  <iupac_name/>
  <traditional_iupac/>
  <cas_registry_number>94105-90-5;66036-38-2</cas_registry_number>
  <smiles>OC1=CC=C(C=C1)C1COC2=C(C1)C=CC(O)=C2</smiles>
  <inchi>InChI=1S/C15H14O3/c16-13-4-1-10(2-5-13)12-7-11-3-6-14(17)8-15(11)18-9-12/h1-6,8,12,16-17H,7,9H2</inchi>
  <inchikey>ADFCQWZHKCXPAJ-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <kingdom/>
    <super_class/>
    <class/>
    <sub_class/>
    <direct_parent/>
    <alternate_parents/>
    <substituents/>
    <molecular_framework/>
    <descriptors/>
  </taxonomy>
  <status>Detected and Not Quantified</status>
  <origin/>
  <cellular_locations/>
  <biofluid_locations/>
  <tissue_locations/>
  <pathways/>
  <state/>
  <appearance/>
  <experimental_properties/>
  <predicted_properties>
    <property>
      <kind>average_mass</kind>
      <value>242.274</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>242.094294</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>OC1=CC=C(C=C1)C1COC2=C(C1)C=CC(O)=C2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C15H14O3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C15H14O3/c16-13-4-1-10(2-5-13)12-7-11-3-6-14(17)8-15(11)18-9-12/h1-6,8,12,16-17H,7,9H2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>ADFCQWZHKCXPAJ-UHFFFAOYSA-N</value>
      <source>ChemAxon</source>
    </property>
  </predicted_properties>
  <route_of_exposure/>
  <mechanism_of_toxicity/>
  <metabolism/>
  <toxicity/>
  <lethaldose/>
  <carcinogenicity/>
  <use_source/>
  <min_risk_level/>
  <health_effects>#&lt;HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f72279f15f0&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id/>
  <hmdb_id/>
  <pubchem_compound_id>382975</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>339332</chemspider_id>
  <kegg_id/>
  <uniprot_id/>
  <omim_id/>
  <chebi_id/>
  <biocyc_id/>
  <ctd_id/>
  <stitch_id/>
  <actor_id/>
  <pdb_id/>
  <wikipidia/>
  <general_references/>
  <targets>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
    <target>
      <target_id/>
      <mechanism_of_action/>
      <constants/>
      <references/>
    </target>
  </targets>
</compound>
