3,5-Bis(2-hydroxy­ethyl)-4-oxahexa­cyclo­[5.4.1.0^2,6.0^3,10.0^5,9.0^8,11]dodeca­ne

The title mol­ecule, C₁₅H₂₀O₃, exhibits C—C bond lengths that deviate from normal values. A number of long and short C—C bonds are observed. Neighbouring mol­ecules inter­act via strong O—H...O hydrogen bonds, forming two-dimensional hydrogen-bonded sheets.