3 6-dimethyl-4-propylheptane July 8, 2019 16 32 64 128 3 5-diethyl 2 6-dimethyl 4-propylheptane 3 6-dimethyl-5-propylnonane 3 6-dimethyl-5-propyloctane 3 4 dimethylhexane 3 4-dimethylheptan-2-ol 4 4-dimethyl-3-ethylheptane