3 4 5-trimethylheptane structural formula July 8, 2019 16 32 64 128 3 4 5 trimethylheptane structural formula 3 methylhexane 3 4 5-trimethylheptan-3 4-diol 3 4 5-trimethyl-4-n-propyloctane 3 3 5-trimethylheptane