(4S)-1-methyl-4-(6-methylhepta-1,5-dien-2-yl)cyclohexene;(4S)-1-methyl-4-(5-methyl-1-methylene-hex-4-enyl)cyclohexene;(4S)-1-methyl-4-(5-methyl-1-methylenehex-4-enyl)cyclohexene
(4S)-1-methyl-4-(6-methylhepta-1,5-dien-2-yl)cyclohexene