Chemical Entities of Biological Interest (ChEBI) is a freely available dictionary of molecular entities focused on ‘small’ chemical compounds.


Search for only     All in ChEBI    

Example: iron*, InChI=1S/CH4O/c1-2/h2H,1H3, caffeine

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Documentation

User Manual Learn more about the data fields in the ChEBI and data sources for ChEBI. If you are unable to access the online Google document, please use the FTP link to view our manuals.

Train Online Tutorial An online quick tour (0.5 h) and a more detailed tour (1 h) covering much of the material in the User Manual can be found on the EBI Train Online site here.

Statistics Graphs showing the growth of ChEBI, the numbers of curated, submitted and unchecked entries, the numbers of links to other resources and the sources of the information present in ChEBI

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Downloads

SDF files ChEBI provides its chemical structures and additional data in structure-data file (SDF) format.

Ontology files ChEBI ontology is provided in the W3C standard Web Ontology Language (OWL) and OBO formats.

Database files ChEBI is stored in a relational database and we currently provide the ChEBI tables in flat-file tab delimited format, as an Oracle binary dumps and a generic SQL dumps for MySQL and PostgreSQL database.

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Entity of the month

1st May 2020
Hydroxychloroquine


Tradition has it that in 1638 when Lady Ana de Osorio, the Countess of Chinchón, the wife of the Viceroy of Peru, fell ill with malarial fever, she was treated with the bark of a tree (much later named the Cinchona tree in her honour by the Swedish botanist Carl Linnaeus). It was at the recommendation of the Spanish Jesuit missionaries who were taught the healing power of the bark by the native Incas. Her recovery was dramatic and when she returned to Spain, she brought with her large supplies of the powdered bark, originally known as 'Jesuit's Powder' [1,2].

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