3 3-dimethyl-5 5-dimethylheptane July 8, 2019 16 32 64 128 3 3-dimethyl-hepta-4 5-dien-2-ol 3 3-dimethylheptane 1 5-heptadiene 2 5-dimethyl-3-methylene- 3 3-діетил-2 5-диметилоктан 3 3-dimetyloheptan