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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 19786
    role 19732
      biological role 19732
        biochemical role 19333
          cofactor 15546
            copper(1+) 4
              cuprous oxide 0
                cuprous oxide nanoparticle 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19786
    subatomic particle 19784
      composite particle 19784
        hadron 19784
          baryon 19784
            nucleon 19784
              atomic nucleus 19784
                atom 19784
                  main group element atom 19675
                    p-block element atom 19675
                      chalcogen 19413
                        oxygen atom 19378
                          oxygen molecular entity 19378
                            oxide 11754
                              inorganic oxide 7527
                                metal oxide 239
                                  copper oxide 0
                                    cuprous oxide 0
                                      cuprous oxide nanoparticle 0
paths to the root