E )- 2 3 dimethylpent 2 ene July 8, 2019 16 32 64 128 E )- 2 bromo 3 4 dimethylpent 2 ene 2 3-dimethylpent-2-ene 2 3-dimethylpent-2-ene formula 2 3-dimethylpent-1-ene 2 3-dimethylpent-2-ene isomers
