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 quercetin O-glucoside that consists of quercetin attached to a beta-D-glucopyranosyl moiety at position 7 and a alpha-L-6'''-p-coumaroyl-beta-D-glucopyranosyl-(1->2)-rhamnopyranosyl residue at position 3 via a glycosidic linkage. Isolated from the leaves of Ginkgo biloba, it exhibits antioxidant activity.