Synonyms: 1H-Cyclopenta[2,3]cyclopropa[1,2-g]benzofuran-3,7(2H,6H)-dione,3a,3b,4,5,5aa,8aa-hexahydro-3ab,3ba,6a-trimethyl- (8CI);1H-Cyclopenta[2,3]cyclopropa[1,2-g]benzofuran-3,7(2H,6H)-dione,hexahydro-3a,3b,6-trimethyl-, (3aR,3bS,5aS,6S,8aR,8bR)- (9CI);1H-Cyclopenta[2,3]cyclopropa[1,2-g]benzofuran-3,7(2H,6H)-dione,hexahydro-3a,3b,6-trimethyl-, [3aR-(3aa,3bb,5ab,6b,8ab,8bR*)]-; 6-Epilumisantonin, dihydro- (7CI); Dihydro-6-epilumisantonin;Dihydrolumi-6-episantonin