5-ethyl-6 8-dimethyl-2 4 5-pentanetriol July 8, 2019 16 32 64 128 2 5 5-trimethyl-6-heptyne 2 methyl 2 butanol 5 5-diethyl-2 2 4 4-tetramethyloctane 3 4 5-trimethyl-4-n-propyloctane