2 3 5-trimethylhex-2-ene July 8, 2019 16 32 64 128 2 3 5 trimethylhex 1 ene 2 3 5-trimethylhexane 2 2 5-trimethylhexane 2 3 5 5-tetramethylhexane 2 3 3-trimethylhexane