Kokosanolide from the seed of Lansium domesticum Corr.

In the title compound, [systematic name: 8,14-secogammacera-7,14(27)-diene-3,21-dione], C27H32O9, each of the six-membered rings adopts the common chair conformation. In the crystal, molecules are linked by an O–H...Oester hydrogen bond into a helical chain