4 ethyl 2 2 3 trimethylheptane July 8, 2019 16 32 64 128 4 ethyl 2 2 3 trimethylheptane molecular formula 4 ethyl 2 3 3 trimethylheptane công thức cấu tạo 2 3 4-trimethyl-4-propylheptane 2 3 4 trimetylheptan 2 methyl 2 butanol 2 3 4 trimethyl
