<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2016-05-22 05:03:14 UTC</creation_date>
  <update_date>2026-08-18 16:01:25 UTC</update_date>
  <accession/>
  <common_name>Pirfenidone</common_name>
  <class>SmallMolecule</class>
  <description>Pirfenidone is an organic compound with the formula C12H11NO and an average molecular weight of 185.22 g/mol. Pirfenidone belongs to the hydropyridines, a subclass of pyridines and derivatives within the organic compounds. It functions as a biological drug (PMC5096843) and is used as a treatment for pulmonary fibrosis (PMC13006651). At the molecular level, it acts as a modulator of the protein target Transforming growth factor beta-1 proprotein (TGFB1).

The compound has been recorded in five sources, including healthcare, pharmaceuticals &amp; veterinary products (specifically immunosuppressants), household cleaning &amp; consumer products (non electric simulated smoking devices), building &amp; construction (ceilings), and electrical &amp; electronic equipment (antennas and electrically stimulated smoking devices). The recorded route of exposure for this substance is oral.</description>
  <categories/>
  <types/>
  <synonyms>
    <synonym>pipazetate</synonym>
  </synonyms>
  <chemical_formula>C12H11NO</chemical_formula>
  <average_molecular_weight>185.2218</average_molecular_weight>
  <monisotopic_moleculate_weight>185.084063979</monisotopic_moleculate_weight>
  <iupac_name>5-methyl-1-phenyl-1,2-dihydropyridin-2-one</iupac_name>
  <traditional_iupac>pirfenidone</traditional_iupac>
  <cas_registry_number>53179-13-8</cas_registry_number>
  <smiles>CC1=CN(C(=O)C=C1)C1=CC=CC=C1</smiles>
  <inchi>InChI=1S/C12H11NO/c1-10-7-8-12(14)13(9-10)11-5-3-2-4-6-11/h2-9H,1H3</inchi>
  <inchikey>ISWRGOKTTBVCFA-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <kingdom>Organic compounds</kingdom>
    <super_class>Organoheterocyclic compounds</super_class>
    <class>Pyridines and derivatives</class>
    <sub_class>Hydropyridines</sub_class>
    <direct_parent>Pyridinones</direct_parent>
    <alternate_parents>
      <alternative_parent>Azacyclic compounds</alternative_parent>
      <alternative_parent>Benzene and substituted derivatives</alternative_parent>
      <alternative_parent>Dihydropyridines</alternative_parent>
      <alternative_parent>Heteroaromatic compounds</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Lactams</alternative_parent>
      <alternative_parent>Methylpyridines</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Organonitrogen compounds</alternative_parent>
      <alternative_parent>Organooxygen compounds</alternative_parent>
      <alternative_parent>Organopnictogen compounds</alternative_parent>
    </alternate_parents>
    <substituents>
      <substituent>Aromatic heteromonocyclic compound</substituent>
      <substituent>Azacycle</substituent>
      <substituent>Benzenoid</substituent>
      <substituent>Dihydropyridine</substituent>
      <substituent>Heteroaromatic compound</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Lactam</substituent>
      <substituent>Methylpyridine</substituent>
      <substituent>Monocyclic benzene moiety</substituent>
      <substituent>Organic nitrogen compound</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organonitrogen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Organopnictogen compound</substituent>
      <substituent>Pyridinone</substituent>
    </substituents>
    <molecular_framework>Aromatic heteromonocyclic compounds</molecular_framework>
    <descriptors>
      <descriptor>pyridone</descriptor>
      <descriptor>ring assembly</descriptor>
    </descriptors>
  </taxonomy>
  <status>Detected and Not Quantified</status>
  <origin/>
  <cellular_locations/>
  <biofluid_locations/>
  <tissue_locations/>
  <pathways>
    <pathway>
      <name>Pirfenidone Drug Metabolism Action Pathway</name>
      <smpdb_id>SMP0143952</smpdb_id>
      <kegg_map_id/>
    </pathway>
    <pathway>
      <name>Pirfenidone Predicted Metabolism Pathway</name>
      <smpdb_id>SMP0174552</smpdb_id>
      <kegg_map_id/>
    </pathway>
  </pathways>
  <state/>
  <appearance/>
  <experimental_properties>
    <property>
      <kind>logp</kind>
      <value>2.14</value>
    </property>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>2.00</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-1.81</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>2.89e+00 g/l</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>2.14</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>-1.2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>5-methyl-1-phenyl-1,2-dihydropyridin-2-one</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>185.2218</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>185.084063979</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>CC1=CN(C(=O)C=C1)C1=CC=CC=C1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C12H11NO</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C12H11NO/c1-10-7-8-12(14)13(9-10)11-5-3-2-4-6-11/h2-9H,1H3</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>ISWRGOKTTBVCFA-UHFFFAOYSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>20.31</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>57</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>20.28</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>1</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>
  </predicted_properties>
  <route_of_exposure/>
  <mechanism_of_toxicity/>
  <metabolism/>
  <toxicity/>
  <lethaldose/>
  <carcinogenicity/>
  <use_source/>
  <min_risk_level/>
  <health_effects>#&lt;HealthEffect::ActiveRecord_Associations_CollectionProxy:0x00007f7225acb7c0&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id>DB04951</drugbank_id>
  <hmdb_id/>
  <pubchem_compound_id>40632</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>37115</chemspider_id>
  <kegg_id/>
  <uniprot_id/>
  <omim_id/>
  <chebi_id/>
  <biocyc_id/>
  <ctd_id/>
  <stitch_id/>
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  <pdb_id/>
  <wikipidia/>
  <general_references/>
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</compound>
