2 3 5 6-tetramethyloctane July 8, 2019 16 32 64 128 2 3 5 6-trimethyloctane 3 ethyl 2 4 5 6 tetramethyloctane 3 4 diethyl 2 5 5 6 tetramethyloctane 5 ethyl 2 3 6 trimethyloctane 2 3 5-trimethyloctane 2 2 5-trimethyloctane 2 3 5-trimethylhexane 2 3 3-trimethyl-1 4 6-octatriene