The molecule is a polyunsaturated fatty acid consisting of (7E,9E,11Z,14Z,16E)-icosapentaenoic acid carrying additional 18-hydroxy and (5S,6S)-epoxy groups. It is an epoxy fatty acid, an icosanoid, a long-chain fatty acid and a hydroxy polyunsaturated fatty acid. It is a conjugate acid of a 5(S),6(S)-epoxy-18-hydroxy-(7E,9E,11Z,14Z,16E)-icosapentaenoate.
4-[(2S,3S)-3-[(1E,3E,5Z,8Z,10E)-12-hydroxytetradeca-1,3,5,8,10-pentaenyl]oxiran-2-yl]butanoic acid