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 chalcones that is (2E)-1-(3,4-dihydro-2H-chromen-6-yl)-3-(4-hydroxyphenyl)prop-2-en-1-one substituted by hydroxy groups at position 3 and 5, a methoxy group at position 7 and geminal methyl groups at position 2. It has been isolated as a racemate from Humulus lupulus and has been shown to exhibit inhibitory activity against nitric oxide production.