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
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.
News
Entity of the month
1st February 2019
Main Group Element Atom
Throughout the 19th Century, chemists tried to organise the known elements so as to reflect similarities in their properties. In 1864, the British chemist John Newlands (1837–1898) arranged the elements in order of increasing atomic weight. He noticed that elements with similar physical and chemical properties occurred after each interval of seven elements (the inert gases were still unknown). He likened this periodicity to the musical scale, but his "Law of Octaves" was initially ridiculed [1].
