(-)-cis-beta-Elemene (1R,2S,4R)-2,4-diisopropenyl-1-methyl-1-vinylcyclohexane 2,4-Diisopropenyl-1-methyl-1-vinyl-cyclohexane InChI=1/C15H24/c1-7-15(6)9-8-13(11(2)3)10-14(15)12(4)5/h7,13-14H,1-2,4,8-10H2,3,5-6H3/t13-,14+,15+/m1/s cyclohexane, 1-ethenyl-1-methyl-2,4-bis(1-methylethenyl)-, (1R,2S,4R)-