Synonyms: 4a,7-Methano-4aH-naphth(1,8a-b)oxirene, octahydro-4,4,8,8-tetramethyl-, (1aR,4aR,7S,8aS)-;2H,2alpha,4aalpha-Methanonaphthalene, 8,8alpha-epoxyoctahydro-1,1,5,5-tetramethyl-;Isolongifolene oxide;(1aR-(1aalpha,4aalpha,7alpha,8aS*))-Octahydro-4,4,8,8-tetramethyl-4a,7-methano-4aH-naphth(1,8a-b)oxirene;4,4,8,8-tetramethyloctahydro-4a,7-methanonaphtho[1,8a-b]oxirene