2 2 5-trimethyloctane July 8, 2019 16 32 64 128 2 2 5 trimethyloctane structure 5 ethyl 2 2 5 trimethyloctane 3 ethyl 2 2 5 trimethyloctane 5-ethyl-2 2 6 trimethyloctane 2 3 5-trimethyloctane 2 methyl 2 butanol 2 4 5-trimethylaniline 2 5 5-trimethyl-6-heptyne