The Chemical Entities of Biological Interest (ChEBI) ontology is downloaded weekly from EMBL-EBI at http://www.ebi.ac.uk/chebi/. The data is made available under the Creative Commons License (CC BY 3.0, http://creativecommons.org/licenses/by/3.0/). For more information see: Degtyarenko et al. (2008) ChEBI: a database and ontology for chemical entities of biological interest. Nucleic Acids Res. 36, D344–D350.
A prostanoid that is prostaglandin E2 in which the acyclic hydroxy group has been oxidised to the corresponding ketone, the methyl group has been oxidised to the corresponding carboxylic acid and the 6-carboxyhexenyl group has been oxidatively cleaved to a 2-carboxyethyl group. It is the major urinary metabolite of prostaglandin E2.