The molecule is a primary alcohol, a secondary alcohol, an amino dicarboxylic acid, a L-cysteine thioether and a non-proteinogenic L-alpha-amino acid. It derives from a leukotriene E4. It is a conjugate acid of a 20-hydroxy-leukotriene E4(1-).
(5S,6R,7E,9E,11Z,14Z)-6-[(2R)-2-amino-2-carboxyethyl]sulfanyl-5,20-dihydroxyicosa-7,9,11,14-tetraenoic acid