SEARCH Articles Figures Tables D-Arabino-l,4-lactone, crystal structure Dibenzocyclooctadiene lactone X-ray structure Diterpene lactone structure Galactono-1,5-lactone structure Glucofuranurono-6,3-lactone structure Glucofuranurono-6,3-lactones structure Macrocyclic lactones, molecular structures Sesquiterpene lactone structure Sesquiterpene lactones structural diversity Sesquiterpene lactones structural types Sesquiterpene lactones structure activity relationships Sesquiterpene lactones structures Y-lactone structure