2 5-dimethylheptane structure July 8, 2019 16 32 64 128 3-ethyl-2 5 dimethylheptane structure 2 5 dimethylheptane bond line structure Condensed structure of 2 5 dimethylheptane 2 methyl 2 butanol 2 2-dimethylheptane structural formula 2 5-dimethylheptane formula 2 5-dimethylheptan 2 2-dimethylheptane