8α-Hydroxy-11α,13-dihydrozaluzanin C

In the structure of the title compound [decahydro-4,8-dihydroxy-3-methyl-6,9-bis(methylene)azuleno[4,5-b]furan- 2(3H)-one, C₁₅H₂₀O₄], the secondary hydroxyl groups participate in inter­molecular hydrogen bonds both as donors and acceptors.

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