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The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at The data is made available under the Creative Commons License (CC BY 3.0, For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.

Term:cuprous oxide
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Accession:CHEBI:81908 term browser browse the term
Definition:Any copper oxide in which the metal is in the +1 oxidation state.
Synonyms:exact_synonym: copper(1+) oxidocopper
 related_synonym: Copper (I) oxide;   Cu2O;   Formula=Cu2O;   InChI=1S/2Cu.O/q2*+1;-2;   InChIKey=KRFJLUBVMFXRPN-UHFFFAOYSA-N;   SMILES=[O-2].[Cu+].[Cu+];   copper(1+) oxide;   dicopper monoxide
 alt_id: CHEBI:47292
 xref: CAS:1317-39-1;   KEGG:C18714;   PDBeChem:C2O;   PMID:26116793;   PMID:26369199;   PMID:26467678;   PMID:27061060;   PMID:27103492;   PMID:27196539;   PMID:27232100;   PMID:27609560;   PMID:27649330;   PMID:27843139;   Reaxys:23129941;   Reaxys:4933945;   Wikipedia:Copper(I)_oxide

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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 0
    role 0
      biological role 0
        biochemical role 0
          cofactor 0
            copper(1+) 0
              cuprous oxide 0
                cuprous oxide nanoparticle 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 0
    subatomic particle 0
      composite particle 0
        hadron 0
          baryon 0
            nucleon 0
              atomic nucleus 0
                atom 0
                  main group element atom 0
                    p-block element atom 0
                      chalcogen 0
                        oxygen atom 0
                          oxygen molecular entity 0
                            oxide 0
                              inorganic oxide 0
                                metal oxide 0
                                  copper oxide 0
                                    cuprous oxide 0
                                      cuprous oxide nanoparticle 0
paths to the root