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 hydroxy fatty amide ascaroside obtained by obtained by formal condensation of the 24-hydroxy group of (24R)-24-hydroxy-N-(2-hydroxyethyl)-2-methyl-3-oxopentacosanamide with ascarylopyranose (the alpha anomer). It is a metabolite of the nematode Caenorhabditis elegans.