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 lactucin. Found in chicory. It has a role as a plant metabolite. It is an azulenofuran, a cyclic terpene ketone, an enone, an oxo monocarboxylic acid, a sesquiterpene lactone and a secondary alcohol. It derives from an oxalic acid and a lactucin.
2-[[(3aR,4S,9aS,9bR)-4-hydroxy-6-methyl-3-methylidene-2,7-dioxo-4,5,9a,9b-tetrahydro-3aH-azuleno[8,7-b]furan-9-yl]methoxy]-2-oxoacetic acid