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


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Example: iron*, InChI=1S/H2O/h1H2, water

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Documentation

Tutorial An introduction to the ChEBI database and ontology, showing users how to search and browse the web/programmatic interface.

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

User Manual Learn more about the data fields in the ChEBI and data sources for 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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News


Archived News...

Entity of the month

1st March 2017
Hypoglycin A


For at least twenty years in Bihar, the third most populous state in India, there have been reports of previously healthy children waking in the night during the early summer convulsed with seizures and suffering from mental confusion and memory loss. In around a third of cases, they then fall into a coma and die; many of the survivors are left brain damaged. Each year, the outbreak of cases ends suddenly with the arrival of the monsoon rains in July, only to return again the following summer.

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