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4H,11H-Naphtho[2,1-b]pyrano[3,4-e]pyran-1,11(5H)-dione,9-(3,4-dimethoxyphenyl)-4a,6,6a,12,12a,12b-hexahydro-4a,12a-dihydroxy-4,4,6a,12b-tetramethyl-,(4aR,6aR,12aS,12bS)- related products: