5 9 dodecadien 2 one 6 10 dimethyl e e ))- July 8, 2019 16 32 64 128 2 4 dimethylhexane 2 6-bis(1 1-dimethylethyl)-2 5-cyclohexadiene-1 4-dione 5 5-dimethylhexane-2 4-dione 4 5-diethyl-2 2-dimethylnonan