64340-33-6 (1aS,6aR)-1,1aα,2,3,3a,3bβ,4,6bα-Octahydro-1,1,3aα,6-tetramethylcyclopenta[2,3]cyclopropa[1,2-a]cyclopropa[c]benzene 64340-48-3 (Z)-2-Methyl-2-butenoic acid [(2E,4R)-4-acetoxy-3-methyl-5-[(1S)-1,2,3,4,4a,7,8,8aβ-octahydro-1,2α,4aβ,5-tetramethyl-7-oxonaphthalen-1-yl]-2-pentenyl] ester