Synonyms: (1aS,3bβ,6aβ,7aS)-3,3a,3b,4,5,6,6a,7-Octahydro-4β-hydroxy-3aα,5,5-trimethyl-3-methylenecyclopenta[4,5]pentaleno[1,6a-b]oxiren-2(1aβH)-one;(3aR,3bβ,6aβ)-4β-Hydroxy-3aα,5,5-trimethyl-3-methylene-1α,7aα-epoxydecahydro-2H-cyclopenta[a]pentalene-2-one;Hypnophilin