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.
An isopimarane diterpenoid that is isopimarane in which the ethyl subtituent at position 13 has undergone formal dehydrogenation to the corresponding vinyl group, and in which the hydrogen at position 8 has been replaced by a hydroxy group. It has been found in the leaves of several plants, including Cryptomeria japonica and Isodon rubescens.