(1)Benzopyrano(3,4-b)furo(2,3-h)(1)benzopyran-6(12H)-one, 1,2-dihydro-2-alpha-isopropyl-8,9-dimethoxy- (1)Benzopyrano(3,4-b)furo(2,3-h)(1)benzopyran-6(12H)-one, 1,2-dihydro-8,9-dimethoxy-2-(1-methylethenyl)-, (2R)- (1)Benzopyrano(3,4-b)furo(2,3-h)(1)benzopyran-6(12H)-one, 1,2-dihydro-8,9-dimethoxy-2-(1-methylethenyl)-, (R)- 3466-09-9 6a,12a-Dehydrorotenone 7,8-Didehydrorotenone Dehydrorotenone NSC 194812 Rotenone, 7,8-didehydro- Rotenone, didehydro-