2 4 dimethylheptane structure July 8, 2019 16 32 64 128 2 4 dimethylheptane condensed structure 2 4-dimethylheptane line structure 3 ethyl 2 4 dimethylheptane structure 4 ethyl 2 4 dimethylheptane structure 2 4-dimethylheptane 2 4-dimetyloheksan 2 4-dimethylheptane formula 2 4-диметилпентан қышқылы 2 4-dimethyl-3-ethylpentane
