The molecule is a long-chain fatty acid ethyl ester resulting from the formal condensation of the carboxy group of (8Z,11Z,14Z,17Z)-icosatetraenoic acid with the hydroxy group of ethanol. It derives from an all-cis-8,11,14,17-icosatetraenoic acid.
ethyl (8Z,11Z,14Z,17Z)-icosa-8,11,14,17-tetraenoate