3 4 5-trimethylheptane structure July 8, 2019 16 32 64 128 3 ethyl 2 4 5 trimethylheptane structure 3 4 5-trimethylheptane structural formula 3 4 5-trimethylheptan-3 4-diol 3 4 4-trimethylheptane structural formula 3 4 5 6 6-pentamethylhept-3-en-2-one 3 4 5-trimethylheptane