Crystal Structure of 12-Methoxy-8,8,21,21-tetramethyl-5-(3-methylbut-2,4-dienyl)-19-(3-methylpent-4-enyl)-3,7,20-trioxahexacyclo [15.4.1.0<2,15>.0<2,19>.0<4,13>.0<6,11>]docosa-4(13),5,9,11,15-pentaene-14,18-dione

The title compound was extracted from the natural product of plant origin. It crystallizes in tetragonal space group P4(1) or P4(3), with cell parameters a = 15.795(2)Angstrom, c = 11.970(5)Angstrom and Z = 4. The structure exhibits intermolecular hydrogen bonds of the type C-H...O