The molecule is a sesquiterpene lactone obtained by formal condensation of one of the carboxy groups of oxalic acid with the 15-hydroxy group of lactucopicrin. Found in chicory. It has a role as a plant metabolite. It is an azulenofuran, a cyclic terpene ketone, an enone, a sesquiterpene lactone, an oxo monocarboxylic acid and a member of phenols. It derives from a lactucin, an oxalic acid and a 4-hydroxyphenylacetic acid.
2-[[(3aR,4S,9aS,9bR)-4-[2-(4-hydroxyphenyl)acetyl]oxy-6-methyl-3-methylidene-2,7-dioxo-4,5,9a,9b-tetrahydro-3aH-azuleno[8,7-b]furan-9-yl]methoxy]-2-oxoacetic acid