The furan­osteroid viridiol

The asymmetric unit of the title compound, C₂₀H₁₈O₆ (systematic name: 1β,3β-dihy­droxy-2β-meth­oxyfuro[4′,3′,2′:4,5,6]-18-norandrosta-8,11,13-triene-7,17-dione), a dihydro derivative of the fungal steroid viridin, contains two mol­ecules with similar conformations. The rings bearing the hy­droxy groups adopt boat conformations. The absolute structure was assigned based on the known chirality of a precursor compound. In the crystal, mol­ecules are linked by O—H...O hydrogen bonds, generating a three-dimensional network and weak C—H...O inter­actions consolidate the packing.