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 benzofuropyranochromene that is 3H,7H-[1]benzofuro[3,2-c]pyrano[3,2-g]chromene substituted at positions 7a and 10 by hydroxy groups and at position 3 by a gem-dimethyl group.