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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.

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Accession:CHEBI:32993 term browser browse the term
Definition:An uranium cation that has formula U.
Synonyms:exact_synonym: uranium(2+) ion;   uranium(II) cation
 related_synonym: Formula=U;   InChI=1S/U/q+2;   InChIKey=APTCBRLTBRHWIW-UHFFFAOYSA-N;   SMILES=[U++];   U(2+)
 xref: Gmelin:203187

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Path 1
Term Annotations click to browse term
  CHEBI ontology 885
    chemical entity 885
      molecular entity 883
        ion 130
          cation 125
            monoatomic cation 79
              monoatomic dication 48
                uranium(2+) 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 885
    subatomic particle 870
      composite particle 870
        hadron 870
          baryon 870
            nucleon 870
              atomic nucleus 870
                atom 870
                  metal atom 156
                    transition element atom 115
                      transition element molecular entity 113
                        f-block molecular entity 0
                          actinoid molecular entity 0
                            uranium molecular entity 0
                              elemental uranium 0
                                monoatomic uranium 0
                                  uranium cation 0
                                    uranium(2+) 0
paths to the root