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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:16793 term browser browse the term
Definition:A mercury cation that has formula Hg.
Synonyms:related_synonym: Formula=Hg;   Hg(2+);   Hg2+;   InChI=1S/Hg/q+2;   InChIKey=BQPIGGFYSBELGY-UHFFFAOYSA-N;   MERCURY (II) ION;   Mercuric ion;   SMILES=[Hg++];   mercury(2+) ion;   mercury(II);   mercury(II) cation
 alt_id: CHEBI:13370;   CHEBI:25199;   CHEBI:25200;   CHEBI:49640;   CHEBI:5714
 xref: KEGG:C00703
 xref_mesh: MESH:D008628
 xref: PDBeChem:HG;   UM-BBD_compID:c0096

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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
                mercury(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
                        d-block molecular entity 16426
                          zinc group molecular entity 10023
                            mercury molecular entity 6665
                              elemental mercury 547
                                mercury cation 0
                                  mercury(2+) 0
paths to the root