1H-2,8a-Methanocyclopenta(a)cyclopropa(e)cyclodecen 11-one, 2,5,5a,6,9,10,10a,1a-octahydro-4-hexadecanoyloxymethyl-1,1,7,9-tetramethyl-5,5a,6-trihydroxy- 74111-26-5