2,6,10,15,19,23-hexamethyl-1,3E,6E,10E,14E,18E,22-tetracosaheptaene

2,8,12,17,21,25-hexamethyl-2,8E,12E,16E,20E,24-hexacosahexaene

2,6,10,14,19,23,27-heptamethyl-2,6E,10E,14E,18E,22E,26-octacosaheptaene

6-methylhept-5-en-1-yne

2,6-dimethyl-6-(3-methylbut-2-enyl)cyclohex-2-en-1-one