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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 21726
    chemical entity 21724
      molecular entity 21711
        ion 16620
          cation 16444
            monoatomic cation 14570
              monoatomic dication 10661
                uranium(2+) 0
Path 2
Term Annotations click to browse term
  CHEBI ontology 21726
    subatomic particle 21712
      composite particle 21712
        hadron 21712
          baryon 21712
            nucleon 21712
              atomic nucleus 21712
                atom 21712
                  metal atom 18171
                    transition element atom 17563
                      transition element molecular entity 17219
                        f-block molecular entity 521
                          actinoid molecular entity 0
                            uranium molecular entity 0
                              elemental uranium 0
                                monoatomic uranium 0
                                  uranium cation 0
                                    uranium(2+) 0
paths to the root