4 ethyl 2 2 5 trimethylhexane July 8, 2019 16 32 64 128 4 ethyl 2 3 5 trimethylhexane 4 ethyl 1 2 5 trimethylhexane 4-ethyl-2 2 5-trimethylheptane 3-ethyl-2 2 5-trimethylhexane 3-ethyl-2 4 5-trimethylheptane
