2 2 dimethylpentan strukturformel July 8, 2019 16 32 64 128 3 ethyl 2 2 dimethylpentan strukturformel 2 methyl 2 butanol 2 2-dimethylpentane 2 2dimethylpentan 2 2-dimethylpentan-1-ol 2 2 диметилпентаналь