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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:22563 term browser browse the term
Definition:A monoatomic or polyatomic species having one or more elementary charges of the electron.
Synonyms:related_synonym: Anionen;   aniones;   anions

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Your selection has 15639 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 20056
        chemical entity 20055
          molecular entity 20054
            ion 16470
              anion 15639
                inorganic anion + 12576
                monoanion + 9387
                monoatomic anion + 9284
                organic anion + 3100
                polyatomic anion + 10301
                radical anion + 96
                salt + 15218
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