3 cyclohexyl 2 2 dimethylheptane July 8, 2019 16 32 64 128 3 cyclohexyl 2 2 dimethylheptane structure 3 methylhexane 2 3-dimethyl-1 3-cyclohexadiene 2 3-diethylcyclohexanol 2 3-dimethylcyclohex-1-ene