3 4 dimethyl 1 3 pentadiene July 8, 2019 16 32 64 128 2 4 dimethyl 1 3 pentadiene 3 4-dimetylpent-2-en 3 4-dimethyl-1-pentene 3 4-dimethylpent-2-ene 3 4 dimethyl 1 pentane
