1 3 dimethyl pent 2 ene formula July 8, 2019 16 32 64 128 2 3 dimethylpent 1 ene structural formula 2 3-dimethylpent-1-ene 2 3-dimethyl-1-pentene 2 3-dimethylpent-2-ene formula 2 3 dimetylpent-1-en 2 3-dimethyl-1-pentanol