2 2 5-trimethylheptane July 8, 2019 16 32 64 128 2 2 5-trimethylheptane structural formula 2 2 5 trimethylheptane structure 2 2 5 триметилгептан 4 ethyl 2 2 5 trimethylheptane 3 ethyl 2 2 5 trimethylheptane 5-ethyl-2 2 5-trimethylheptane 5 ethyl 2 2 6 trimethylheptane
