2 4 5-trimethyl-hex-1-eno July 8, 2019 16 32 64 128 2 4 4-trimethyl-1-hexene 2 4 4-trimethylhexane 2 3 5-trimethylhex-2-ene 2 4 5-trimethylheptane 2 2 5-trimethylhexane