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 dioxo monocarboxylic acid that consists of hydrindane bearing oxo and hydroxy substituents at positions 1 and 5 respectively as well as a 2-carboxyethyl substituent at position 4 (the 3aS,4S,5R,7aS diastereomer).