The molecule is a polyunsaturated fatty acid anion that is the conjugate base of 12-HPEPE, obtained by deprotonation of the carboxy group; major species at pH 7.3. It has a role as a platelet aggregation inhibitor. It is a hydroperoxy fatty acid anion, a long-chain fatty acid anion, a polyunsaturated fatty acid anion, a hydroperoxyicosapentaenoate and a hydroperoxy polyunsaturated fatty acid anion. It derives from an all-cis-5,8,11,14,17-icosapentaenoate. It is a conjugate base of a 12-HPEPE.
(5Z,8Z,10E,14Z,17Z)-12-hydroperoxyicosa-5,8,10,14,17-pentaenoate