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 lignan that consists of a 3,4-dimethyloxolane ring substituted by 4-hydroxyphenyl groups at positions 2 and 5 respectively (the 2S,3R,4S,5S-stereoisomer). Isolated from the roots of Krameria lappacea, it exhibits anti-inflammatory activity.