33204-39-6 Oxireno(2,3)azuleno(4,5-b)furan-2(3H)-one, 4-(acetyloxy)-3a,4,5,7,7a,8a,8b,8c-octahydro-6,8a-dimethyl-3-methylene-, (3aR-(3aalpha,4alpha,7abeta,8abeta,8balpha,8cbeta))-