6H-2,8b-Epoxyoxireno[6,7]azuleno[5,4-e]-1,3-benzodioxol-6-one,3a,3b,3c,4a,5,5a,8a,9,10,10a-decahydro-5,5a,10-trihydroxy-4a-(hydroxymethyl)-7,9-dimethyl-10a-(1-methylethenyl)-2-(1,3,5-nonatrien-1-yl)-,