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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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Term paths to the root
Path 1
Term Annotations click to browse term
  CHEBI ontology 19770
    chemical entity 19770
      molecular entity 19768
        ion 15934
          cation 15771
            monoatomic cation 14018
              monoatomic dication 10518
                uranium(2+) 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 19770
    subatomic particle 19768
      composite particle 19768
        hadron 19768
          baryon 19768
            nucleon 19768
              atomic nucleus 19768
                atom 19768
                  metal atom 17283
                    transition element atom 16744
                      transition element molecular entity 16433
                        f-block molecular entity 506
                          actinoid molecular entity 0
                            uranium molecular entity 0
                              elemental uranium 0
                                monoatomic uranium 0
                                  uranium cation 0
                                    uranium(2+) 0
paths to the root