3 ethyl 2 4 5 trimethylheptane July 8, 2019 16 32 64 128 3 ethyl 2 4 5 trimethylheptane structure 2 4 dichloro 3 ethyl 4 5 6 trimethylheptane 2 tert butyl 3 ethyl 4 5 5 trimethylheptane
