<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2016-05-22 03:43:58 UTC</creation_date>
  <update_date>2026-05-14 16:58:33 UTC</update_date>
  <accession/>
  <common_name>Naloxone</common_name>
  <class>SmallMolecule</class>
  <description>Naloxone belongs to the phenanthrenes and derivatives, a class of benzenoids within the organic compounds. It has the chemical formula C19H21NO4 and an average molecular weight of 327.37 g/mol. Biologically, the compound serves as an antidote (PMC3795186). Its protein targets include six recorded proteins, acting as an antagonist, binder, or inhibitor of the Mu-type opioid receptor (OPRM1), Estrogen receptor (ESR1), Delta-type opioid receptor (OPRD1), Kappa-type opioid receptor (OPRK1), and two other proteins.

The compound is found in or released from seven recorded sources. These include pharmaceuticals, veterinary products, and healthcare items such as analgesics, drugs for constipation, and unclassified therapeutic products. It is also associated with electrical and electronic equipment, specifically antennas and amplifiers, as well as household cleaning and consumer products, including other smoking requisites and non-electric simulated smoking devices. Recorded exposure routes for naloxone include buccal, intramuscular, intravenous, nasal, oral, parenteral, subcutaneous, sublingual, and topical administration. Additionally, the compound is used in plastics, specifically in Polyamide, Low-Density Polyethylene, and High-Density Polyethylene.</description>
  <categories/>
  <types/>
  <synonyms/>
  <chemical_formula>C19H21NO4</chemical_formula>
  <average_molecular_weight>327.3743</average_molecular_weight>
  <monisotopic_moleculate_weight>327.147058165</monisotopic_moleculate_weight>
  <iupac_name>(1S,5R,13R,17S)-10,17-dihydroxy-4-(prop-2-en-1-yl)-12-oxa-4-azapentacyclo[9.6.1.0¹,¹³.0⁵,¹⁷.0⁷,¹⁸]octadeca-7(18),8,10-trien-14-one</iupac_name>
  <traditional_iupac>naloxone</traditional_iupac>
  <cas_registry_number>465-65-6</cas_registry_number>
  <smiles>[H][C@@]12OC3=C(O)C=CC4=C3[C@@]11CCN(CC=C)[C@]([H])(C4)[C@]1(O)CCC2=O</smiles>
  <inchi>InChI=1S/C19H21NO4/c1-2-8-20-9-7-18-15-11-3-4-12(21)16(15)24-17(18)13(22)5-6-19(18,23)14(20)10-11/h2-4,14,17,21,23H,1,5-10H2/t14-,17+,18+,19-/m1/s1</inchi>
  <inchikey>UZHSEJADLWPNLE-GRGSLBFTSA-N</inchikey>
  <taxonomy>
    <kingdom>Organic compounds</kingdom>
    <super_class>Benzenoids</super_class>
    <class>Phenanthrenes and derivatives</class>
    <sub_class/>
    <direct_parent>Phenanthrenes and derivatives</direct_parent>
    <alternate_parents>
      <alternative_parent>1,2-aminoalcohols</alternative_parent>
      <alternative_parent>1-hydroxy-2-unsubstituted benzenoids</alternative_parent>
      <alternative_parent>Alkyl aryl ethers</alternative_parent>
      <alternative_parent>Aralkylamines</alternative_parent>
      <alternative_parent>Azacyclic compounds</alternative_parent>
      <alternative_parent>Coumarans</alternative_parent>
      <alternative_parent>Cyclic alcohols and derivatives</alternative_parent>
      <alternative_parent>Hydrocarbon derivatives</alternative_parent>
      <alternative_parent>Isoquinolones and derivatives</alternative_parent>
      <alternative_parent>Ketones</alternative_parent>
      <alternative_parent>Organic oxides</alternative_parent>
      <alternative_parent>Organopnictogen compounds</alternative_parent>
      <alternative_parent>Oxacyclic compounds</alternative_parent>
      <alternative_parent>Piperidines</alternative_parent>
      <alternative_parent>Tertiary alcohols</alternative_parent>
      <alternative_parent>Tetralins</alternative_parent>
      <alternative_parent>Trialkylamines</alternative_parent>
    </alternate_parents>
    <substituents>
      <substituent>1,2-aminoalcohol</substituent>
      <substituent>1-hydroxy-2-unsubstituted benzenoid</substituent>
      <substituent>Alcohol</substituent>
      <substituent>Alkyl aryl ether</substituent>
      <substituent>Amine</substituent>
      <substituent>Aralkylamine</substituent>
      <substituent>Aromatic heteropolycyclic compound</substituent>
      <substituent>Azacycle</substituent>
      <substituent>Carbonyl group</substituent>
      <substituent>Coumaran</substituent>
      <substituent>Cyclic alcohol</substituent>
      <substituent>Ether</substituent>
      <substituent>Hydrocarbon derivative</substituent>
      <substituent>Isoquinolone</substituent>
      <substituent>Ketone</substituent>
      <substituent>Organic nitrogen compound</substituent>
      <substituent>Organic oxide</substituent>
      <substituent>Organic oxygen compound</substituent>
      <substituent>Organoheterocyclic compound</substituent>
      <substituent>Organonitrogen compound</substituent>
      <substituent>Organooxygen compound</substituent>
      <substituent>Organopnictogen compound</substituent>
      <substituent>Oxacycle</substituent>
      <substituent>Phenanthrene</substituent>
      <substituent>Piperidine</substituent>
      <substituent>Tertiary alcohol</substituent>
      <substituent>Tertiary aliphatic amine</substituent>
      <substituent>Tertiary amine</substituent>
      <substituent>Tetralin</substituent>
    </substituents>
    <molecular_framework>Aromatic heteropolycyclic compounds</molecular_framework>
    <descriptors>
      <descriptor>morphinane alkaloid</descriptor>
      <descriptor>organic heteropentacyclic compound</descriptor>
    </descriptors>
  </taxonomy>
  <status>Detected and Not Quantified</status>
  <origin/>
  <cellular_locations/>
  <biofluid_locations/>
  <tissue_locations/>
  <pathways>
    <pathway>
      <name>Naloxone Action Pathway</name>
      <smpdb_id>SMP0000688</smpdb_id>
      <kegg_map_id/>
    </pathway>
    <pathway>
      <name>Naloxone Opioid Antagonist Action Pathway</name>
      <smpdb_id>SMP0126328</smpdb_id>
      <kegg_map_id/>
    </pathway>
    <pathway>
      <name>Naloxone Drug Metabolism Action Pathway</name>
      <smpdb_id>SMP0143602</smpdb_id>
      <kegg_map_id/>
    </pathway>
  </pathways>
  <state/>
  <appearance/>
  <experimental_properties>
    <property>
      <kind>logp</kind>
      <value>1.62</value>
    </property>
  </experimental_properties>
  <predicted_properties>
    <property>
      <kind>logp</kind>
      <value>1.47</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>-1.76</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>5.64e+00 g/l</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>1.62</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_acidic</kind>
      <value>7.27</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_basic</kind>
      <value>10.63</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>(1S,5R,13R,17S)-10,17-dihydroxy-4-(prop-2-en-1-yl)-12-oxa-4-azapentacyclo[9.6.1.0¹,¹³.0⁵,¹⁷.0⁷,¹⁸]octadeca-7(18),8,10-trien-14-one</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>327.3743</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>327.147058165</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>[H][C@@]12OC3=C(O)C=CC4=C3[C@@]11CCN(CC=C)[C@]([H])(C4)[C@]1(O)CCC2=O</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>C19H21NO4</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/C19H21NO4/c1-2-8-20-9-7-18-15-11-3-4-12(21)16(15)24-17(18)13(22)5-6-19(18,23)14(20)10-11/h2-4,14,17,21,23H,1,5-10H2/t14-,17+,18+,19-/m1/s1</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>UZHSEJADLWPNLE-GRGSLBFTSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>70</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>88.72</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>33.8</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>5</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>donor_count</kind>
      <value>2</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:0x00007f3bd3cd0b48&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id>DB01183</drugbank_id>
  <hmdb_id/>
  <pubchem_compound_id>5284596</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id>4447644</chemspider_id>
  <kegg_id/>
  <uniprot_id/>
  <omim_id/>
  <chebi_id/>
  <biocyc_id/>
  <ctd_id/>
  <stitch_id/>
  <actor_id/>
  <pdb_id/>
  <wikipidia/>
  <general_references/>
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</compound>
