2 2 7-trimethyloctane July 8, 2019 16 32 64 128 4 ethyl 2 2 7 trimethyloctane 5 ethyl 2 2 7 trimethyloctane 3 6-diethyl-2 2 7-trimethyloctane 2-fluoro-1-iodo-2 7 7-trimethyloctane 2 2 5-trimethyloctane 2 7 8-trimethyldecane 2 2 7 7 tetramethyloctane 2 6 7-trimethyldecane