<?xml version="1.0" encoding="UTF-8"?>
<compound>
  <version>1.0</version>
  <creation_date>2016-05-19 03:03:39 UTC</creation_date>
  <update_date>2026-04-16 22:12:15 UTC</update_date>
  <accession/>
  <common_name>Cobalt oxide</common_name>
  <class>SmallMolecule</class>
  <description>Cobalt oxide is an inorganic compound with the chemical formula CoO and an average molecular weight of 74.93 g/mol. Cobalt oxide belongs to the transition metal oxides, a subclass of transition metal organides within the inorganic compounds. It is classified under the superclass of mixed metal/non-metal compounds.

In industrial applications, the compound serves as a surface modifier. Cobalt oxide is found in or released from 23 recorded sources. Within the category of electrical and electronic equipment, it is present in antennas, amplifiers, coils, adjustable resistors, auxiliary devices, and 12 additional components. It is also associated with building and construction materials, specifically floors, and household items such as key rings. Furthermore, it is found in food, food processing and cookware in the treatment of hops, as well as in household cleaning and consumer products, including tobacco pipes, pipe accessories, and other smoking requisites.</description>
  <categories/>
  <types/>
  <synonyms/>
  <chemical_formula>CoO</chemical_formula>
  <average_molecular_weight>74.932</average_molecular_weight>
  <monisotopic_moleculate_weight>74.928109</monisotopic_moleculate_weight>
  <iupac_name>λ²-cobalt(2+) ion oxidandiide</iupac_name>
  <traditional_iupac>λ²-cobalt(2+) ion oxidandiide</traditional_iupac>
  <cas_registry_number>11104-61-3</cas_registry_number>
  <smiles>[O--].[Co++]</smiles>
  <inchi>InChI=1S/Co.O/q+2;-2</inchi>
  <inchikey>IUYLTEAJCNAMJK-UHFFFAOYSA-N</inchikey>
  <taxonomy>
    <kingdom>Inorganic compounds</kingdom>
    <super_class>Mixed metal/non-metal compounds</super_class>
    <class>Transition metal organides</class>
    <sub_class>Transition metal oxides</sub_class>
    <direct_parent>Transition metal oxides</direct_parent>
    <alternate_parents>
      <alternative_parent>Inorganic cobalt salts</alternative_parent>
      <alternative_parent>Inorganic oxides</alternative_parent>
    </alternate_parents>
    <substituents>
      <substituent>Inorganic cobalt salt</substituent>
      <substituent>Inorganic oxide</substituent>
      <substituent>Inorganic salt</substituent>
      <substituent>Transition metal oxide</substituent>
    </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>logp</kind>
      <value>-1.30</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logs</kind>
      <value>0.60</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>solubility</kind>
      <value>2.99e+02 g/l</value>
      <source>ALOGPS</source>
    </property>
    <property>
      <kind>logp</kind>
      <value>0.23</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>pka_strongest_acidic</kind>
      <value>3.09</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>iupac</kind>
      <value>λ²-cobalt(2+) ion oxidandiide</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>average_mass</kind>
      <value>74.932</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>mono_mass</kind>
      <value>74.928109</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>smiles</kind>
      <value>[O--].[Co++]</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>formula</kind>
      <value>CoO</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchi</kind>
      <value>InChI=1S/Co.O/q+2;-2</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>inchikey</kind>
      <value>IUYLTEAJCNAMJK-UHFFFAOYSA-N</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polar_surface_area</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>refractivity</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>polarizability</kind>
      <value>1.78</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>rotatable_bond_count</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>acceptor_count</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>donor_count</kind>
      <value>0</value>
      <source>ChemAxon</source>
    </property>
    <property>
      <kind>physiological_charge</kind>
      <value>2</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:0x00007f7220b09f70&gt;</health_effects>
  <symptoms/>
  <treatment/>
  <drugbank_id/>
  <hmdb_id/>
  <pubchem_compound_id>9942118</pubchem_compound_id>
  <chembl_id/>
  <chemspider_id/>
  <kegg_id/>
  <uniprot_id/>
  <omim_id/>
  <chebi_id/>
  <biocyc_id/>
  <ctd_id/>
  <stitch_id/>
  <actor_id/>
  <pdb_id/>
  <wikipidia/>
  <general_references/>
  <targets/>
</compound>
