<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2016-05-25 18:13:03 UTC</creation_date>
  <update_date>2026-05-14 19:59:22 UTC</update_date>
  <accession/>
  <common_name>Isorhamnetin</common_name>
  <class>SmallMolecule</class>
  <description>Isorhamnetin is an organic compound with the formula C16H12O7 and an average molecular weight of 316.26 g/mol. Isorhamnetin belongs to the flavones, a subclass of flavonoids within the organic compounds. In biological contexts, it functions as an antioxidant (PMC4665427) and an anticoagulant (PMC9687696), and it has a therapeutic effect on inflammation (PMC9785621). It is recorded as an inhibitor of the protein target Cytochrome P450 1B1 (CYP1B1). Industrially, the compound is used as a humectant.

Isorhamnetin is found in or released from 18 recorded sources across various sectors. These include Electrical &amp; Electronic Equipment, such as capacitors, batteries, printed circuit boards, cell phones, and wires and cables. In the food, food processing &amp; cookware sector, it is associated with food contact materials, food packaging, the treatment of hops, and the preparation of vinegar, wine, or sparkling wine. It is also found in lubricants within the energy, oil &amp; gas and industrial manufacturing &amp; chemical processing sectors. Other sources include medical devices in the healthcare, pharmaceuticals &amp; veterinary products sector, as well as synthetic textiles and carpets and rugs in the textiles, leather &amp; furnishings sector. Recorded routes of exposure for this compound include touch, oral, and inhalation.</description>
  <categories/>
  <types>
    <type>PFAS</type>
    <type>Phytotoxin</type>
  </types>
  <synonyms/>
  <chemical_formula>C16H12O7</chemical_formula>
  <average_molecular_weight>316.2623</average_molecular_weight>
  <monisotopic_moleculate_weight>316.058302738</monisotopic_moleculate_weight>
  <iupac_name>3,5,7-trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4H-chromen-4-one</iupac_name>
  <traditional_iupac>isorhamnetin</traditional_iupac>
  <cas_registry_number>480-19-3</cas_registry_number>
  <smiles>COC1=C(O)C=CC(=C1)C1=C(O)C(=O)C2=C(O)C=C(O)C=C2O1</smiles>
  <inchi>InChI=1S/C16H12O7/c1-22-11-4-7(2-3-9(11)18)16-15(21)14(20)13-10(19)5-8(17)6-12(13)23-16/h2-6,17-19,21H,1H3</inchi>
  <inchikey>IZQSVPBOUDKVDZ-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <kingdom>Organic compounds</kingdom>
    <super_class>Phenylpropanoids and polyketides</super_class>
    <class>Flavonoids</class>
    <sub_class>Flavones</sub_class>
    <direct_parent>Flavonols</direct_parent>
    <alternate_parents>
      <alternative_parent>1-hydroxy-2-unsubstituted benzenoids</alternative_parent>
      <alternative_parent>1-hydroxy-4-unsubstituted benzenoids</alternative_parent>
      <alternative_parent>3'-O-methylated flavonoids</alternative_parent>
      <alternative_parent>3-hydroxyflavonoids</alternative_parent>
      <alternative_parent>4'-hydroxyflavonoids</alternative_parent>
      <alternative_parent>5-hydroxyflavonoids</alternative_parent>
      <alternative_parent>7-hydroxyflavonoids</alternative_parent>
      <alternative_parent>Alkyl aryl ethers</alternative_parent>
      <alternative_parent>Anisoles</alternative_parent>
      <alternative_parent>Chromones</alternative_parent>
      <alternative_parent>Heteroaromatic compounds</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Methoxybenzenes</alternative_parent>
      <alternative_parent>Methoxyphenols</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Oxacyclic compounds</alternative_parent>
      <alternative_parent>Phenoxy compounds</alternative_parent>
      <alternative_parent>Polyols</alternative_parent>
      <alternative_parent>Pyranones and derivatives</alternative_parent>
      <alternative_parent>Vinylogous acids</alternative_parent>
    </alternate_parents>
    <substituents>
      <substituent>1-benzopyran</substituent>
      <substituent>1-hydroxy-2-unsubstituted benzenoid</substituent>
      <substituent>1-hydroxy-4-unsubstituted benzenoid</substituent>
      <substituent>3-hydroxyflavone</substituent>
      <substituent>3-hydroxyflavonoid</substituent>
      <substituent>3p-methoxyflavonoid-skeleton</substituent>
      <substituent>4'-hydroxyflavonoid</substituent>
      <substituent>5-hydroxyflavonoid</substituent>
      <substituent>7-hydroxyflavonoid</substituent>
      <substituent>Alkyl aryl ether</substituent>
      <substituent>Anisole</substituent>
      <substituent>Aromatic heteropolycyclic compound</substituent>
      <substituent>Benzenoid</substituent>
      <substituent>Benzopyran</substituent>
      <substituent>Chromone</substituent>
      <substituent>Ether</substituent>
      <substituent>Heteroaromatic compound</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Hydroxyflavonoid</substituent>
      <substituent>Methoxybenzene</substituent>
      <substituent>Methoxyphenol</substituent>
      <substituent>Monocyclic benzene moiety</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organoheterocyclic compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Oxacycle</substituent>
      <substituent>Phenol</substituent>
      <substituent>Phenol ether</substituent>
      <substituent>Phenoxy compound</substituent>
      <substituent>Polyol</substituent>
      <substituent>Pyran</substituent>
      <substituent>Pyranone</substituent>
      <substituent>Vinylogous acid</substituent>
    </substituents>
    <molecular_framework>Aromatic heteropolycyclic compounds</molecular_framework>
    <descriptors>
      <descriptor>7-hydroxyflavonol</descriptor>
      <descriptor>Flavones and Flavonols</descriptor>
      <descriptor>Flavones and Flavonols</descriptor>
      <descriptor>flavonols</descriptor>
      <descriptor>monomethoxyflavone</descriptor>
      <descriptor>tetrahydroxyflavone</descriptor>
    </descriptors>
  </taxonomy>
  <status>Detected and Not Quantified</status>
  <origin/>
  <cellular_locations/>
  <biofluid_locations/>
  <tissue_locations/>
  <pathways/>
  <state/>
  <appearance/>
  <experimental_properties>
    <property>
      <kind>logp</kind>
      <value>2.3</value>
    </property>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>1.96</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-3.33</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>1.49e-01 g/l</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>2.3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_acidic</kind>
      <value>6.38</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>-4</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>3,5,7-trihydroxy-2-(4-hydroxy-3-methoxyphenyl)-4H-chromen-4-one</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>316.2623</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>316.058302738</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>COC1=C(O)C=CC(=C1)C1=C(O)C(=O)C2=C(O)C=C(O)C=C2O1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C16H12O7</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C16H12O7/c1-22-11-4-7(2-3-9(11)18)16-15(21)14(20)13-10(19)5-8(17)6-12(13)23-16/h2-6,17-19,21H,1H3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>IZQSVPBOUDKVDZ-UHFFFAOYSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>116.45</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>81.34</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>30.58</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>7</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>donor_count</kind>
      <value>4</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>
  </predicted_properties>
  <route_of_exposure/>
  <mechanism_of_toxicity/>
  <metabolism/>
  <toxicity/>
  <lethaldose/>
  <carcinogenicity/>
  <use_source/>
  <min_risk_level/>
  <health_effects>#&lt;HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f722227ef70&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id>DB16767</drugbank_id>
  <hmdb_id/>
  <pubchem_compound_id>5281654</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>4444973</chemspider_id>
  <kegg_id/>
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  <chebi_id/>
  <biocyc_id/>
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  <wikipidia/>
  <general_references/>
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</compound>
