database.name

What exists, and how to get in.

ChEBI

Also known as Chemical Entities of Biological Interest

Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of 'small molecular entities'. The term 'molecular entity' encompasses any constitutionally or isotopically distinct atom, molecule, ion, ion pair, radical, radical ion, complex, conformer, etc., identifiable as a separately distinguishable entity. The molecular entities in question are either products of nature or synthetic products used to intervene in the processes of living organisms (either deliberately, as for drugs, or unintentionally', as for chemicals in the environment). The qualifier 'small' implies the exclusion of entities directly encoded by the genome, and thus as a rule nucleic acids, proteins …

Getting access

Open access Open

How to apply
Not yet verified — we don’t publish a route we haven’t checked.

Summarised from a registry — the exact application route is not yet verified.

About this database

Websitehttps://www.ebi.ac.uk/chebi/
SubjectsLife Sciences · Natural Sciences · Biology · Chemistry · Basic Biological and Medical Research · Biochemistry
Last updated2026-09-11

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