4 ethyl 2 3 6 trimethyloctane July 8, 2019 16 32 64 128 3-4-dibromo-5-ethyl-2 6 6 trimethyloctane 4-ethyl-2 2 5-trimethylheptane 3-ethyl-2 4 5-trimethylheptane 4-етил-2 5 6-триметилоктан
