3 7-dimethyl octa-2 6-dienal July 8, 2019 16 32 64 128 3 7-dimethylocta-2 6-dienal E )- 3 7 dimethylocta 2 6 dienal 2e )- 3 7 dimethylocta 2 6 dienal 3 7 dimethylocta 2 6 dienal structure Cis 3 7 dimethylocta 2 6 dienal