ChemicalEntitiesOfBiologicalInterest

http://www.ebi.ac.uk/chebi/

Chemical Entities of Biological Interest : an [[EBI]] database/dictionary of ‘biochemical compounds’ and other chemical entities of biochemical interest with an associated [[Ontology]].

ChEBI’s goal is to provide standard terminology of (bio)chemical compounds that should finally be used in biological databases 

4 sub ontologies
 1. Molecular structure
 1. Biological rule
 1. Application
 1. Subatomic particle

Relationships 
 1. is a
 1. is part of
 1. is condugate base/acid of
 1. is tautomer of
 1. is enantiomer of
 1. has functional parent
 1. has parent hybride
 1. is substituent group from

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CategoryDatabase