2 3 5-dimethylheptane July 8, 2019 16 32 64 128 3 5 diethyl 2 5 dimethylheptane 2 ethyl 3 5 dimethylheptane 2 6 dimethylheptane 3 5 dione 3-ethyl-2 5 dimethylheptane structure 3 chloro-2 5 dimethylheptane 4 5 diethyl 2 3 dimethylheptane 3 5-diethyl-2 6-dimethylheptane