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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 14971 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 19773
        chemical entity 19773
          molecular entity 19772
            ion 15946
              anion 14971
                inorganic anion + 11951
                monoanion + 9274
                monoatomic anion + 9273
                organic anion + 3037
                polyatomic anion + 8897
                radical anion + 96
                salt + 14648
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