(1)Benzopyrano(3,4-B)furo(2,3-H)(1)benzopyran-6(6ah)-one, 1,2,12,12A-tetrahydro-6A-hydroxy-8,9-dimethoxy-2-(1-methylethenyl)-, (2R-(2alpha,6abeta,12abeta))-;6alpha(beta),12alpha(beta)-Rotenolone
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