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 sesquiterpenoid obtained by formal condensation of the carboxy group of aristolochic acid with the hydroxy group of (1R,2Z,6E,10E)-3-formyl-7,11-dimethylcyclododeca-2,6,10-trien-1-ol.