Azuleno[4,5-b]furan-2,7-dione,3,3a,4,5,9a,9b-hexahydro-4-hydroxy-9-(hydroxymethyl)-6-methyl-3-methylene-,(3aR,4S,9aS,9bR)-;LACTUCIN;4-hydroxy-9-(hydroxymethyl)-6-methyl-3-methylidene-4,5,9a,9b-tetrahydro-3aH-azuleno[4,5-b]furan-2,7-dione;Azuleno[4,5-b]furan-2,7-dione,3,3a,4,5,9a,9b-hexahydro-4-hydroxy-9-(hydroxymethyl)-6-methyl-3-...;(3aR,4R,9aS,9bR)-4-hydroxy-9-(hydroxymethyl)-6-methyl-3-methylidene-3,3a,4,5,9a,9b-hexahydroazuleno[4,5-b]furan-2,7-dione;(3aR,4S,9aS,9bR)-4-hydroxy-9-(hydroxymethyl)-6-methyl-3-methylidene-3,3a,4,5,9a,9b-hexahydroazuleno[4,5-b]furan-2,7-dione;Azuleno(4,5-b)furan-2,7-dione, 3,3a,4,5,9a,9b-hexahydro-4-hydroxy-9-(hydroxymethyl)-6-methyl-3-methylene-, (3aR-(3aalpha,4beta,9aalpha,9bbeta))-;(3aR,4S,9aS,9bR)-3,3a,4,5,9a,9b-Hexahydro-4-hydroxy-9-(hydroxymethyl)-6-methyl-3-methyleneazuleno[4,5-b]furan-2,7-dione;Lactucine;(3aR)-3,3aβ,4,5,9aβ,9bα-Hexahydro-4α-hydroxy-9-(hydroxymethyl)-6-methyl-3-methyleneazuleno[4,5-b]furan-2,7-dione