2 2-diethyl-4 4-dimethylpentane July 8, 2019 16 32 64 128 2 2 dimethyl 4 4 dimethylpentane 2 2 diethyl 4 4 dimethylpentane 2 methyl 2 butanol 2 4-диметилпентан қышқылы 2 4-dimetylopentan
