The molecule is a cholesteryl ester obtained by formal condensation of the carboxy group of (11Z,14Z,17Z)-icosatrienoic acid with the 3-hydroxy group of cholesterol. It derives from an all-cis-icosa-11,14,17-trienoic acid.
[(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] (11Z,14Z,17Z)-icosa-11,14,17-trienoate