The molecule is a polyunsaturated fatty acid anion that is the conjugate base of 17,18-EETeTr, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a polyunsaturated fatty acid anion, a long-chain fatty acid anion and an EpETE(1-). It derives from an all-cis-5,8,11,14,17-icosapentaenoate. It is a conjugate base of a 17(18)-EpETE.
(5Z,8Z,11Z,14Z)-16-(3-ethyloxiran-2-yl)hexadeca-5,8,11,14-tetraenoate