alpha-himachalene
1h-苯并环庚烯 1H-benzocycloheptene, 2,4a 4a,5,6,7,8,9,9a-八氢-3 9a-octahydro-3,5,5-三甲基-9-亚甲基- 5-trimethyl-9-methylene-, (4as-cis)-

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