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 member of the class of indolones that is 1,3-dihydro-2H-indol-2-one substituted by a 3-oxo-1,3-dihydro-2H-indol-2-ylidene group at position 3. It is the active component of Dang Gui Long Hui Wan, which has been used in traditional Chinese medicine to treat inflammatory diseases and chronic myeloid leukemia.