1,4-Ethenonaphthalene-2,6-dione,1,3,4,4a,5,8a-hexahydro-3,5-dihydroxy-3,5,8a,9-tetramethyl- (7CI);1,4-Ethyleno-2,8-dihydroxy-2,4a,8,9-tetramethyloctahydronaphthal-5-ene-3,7-dione;NSC 49639
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