2 3 6 7-trimethyloctane July 8, 2019 16 32 64 128 3 ethyl 2 6 7 trimethyloctane 3 6-diethyl-2 2 7-trimethyloctane 2 3 3-trimethyl-1 4 6-octatriene 2 3 5 6-tetramethyloctane 3 5 6-trimethyloctane 2 6 7-trimethyldecane 1 3 6-octatriene 3 7-dimethyl- (z)-