(-)-12,12a-Dihydro-8,9-dimethoxy-(1)benzopyrano(3,4-b)furo(2,3-h)(1)benzopyran-6(6aH)-one (1)Benzopyrano(3,4-b)furo(2,3-h)(1)benzopyran-6(6aH)-one, 12,12a-dihydro-8,9-dimethoxy-, (6aS,12aS)- (1)Benzopyrano(3,4-b)furo(2,3-h)(1)benzopyran-6(6aH)-one, 12,12a-dihydro-8,9-dimethoxy-, (6aS-cis)- (6aS,12aS)-12,12a-Dihydro-8,9-dimethoxy-(1)benzopyrano(3,4-b)furo(2,3-h)(1)benzopyran-6(6aH)-one 13133-16-9 478-10-4 Derride Elliptone