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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:24870 term browser browse the term
Definition:A molecular entity having a net electric charge.
Synonyms:related_synonym: Ionen;   iones;   ions

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Your selection has 16707 annotated objects. The maximum number of objects that can be shown is 2000. The list is too large to display.

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    Path 1
    Term Annotations click to browse term
      CHEBI ontology 19831
        chemical entity 19829
          molecular entity 19829
            ion 16707
              anion + 16084
              cation + 16521
              inorganic ion + 16384
              monoatomic ion + 15856
              organic ion + 9870
              polyatomic ion + 13137
              radical ion + 97
              silicon(2+) 0
              titanium(3+) 0
    paths to the root