2387-78-2 3H-3a,7-Methanoazulene, 2,4,5,6,7,8-hexahydro-1,4,9,9-tetramethyl-, [3aR-(3a.alpha.,4.beta.,7.alpha.)]- 3H-3a.beta.,7-Methanoazulene, 2,4,5,6,7.alpha.,8-hexahydro-1,4.alpha.,9,9-tetramethyl-, (-)- Cyperene Cyperene, (-)- NSC241249