4 5 dimethyl 3 heptanol July 8, 2019 16 32 64 128 4 5 dimethyl 3 heptanol structure 4 5 dimethyl 3 ethyl 2 heptanol 4 5 dimethyl 3 propyl 2 heptanol 4 5-dimethyl 4 5-dimethyl-1-hexene 4 5-diethyl-2 2-dimethylnonan