1,3-Dioxolane, 2-(3,7-dimethyl-2,6-octadienyl)- 2-(3,7-Dimethyl-2,6-octadienyl)-4-methyl-1,3-dioxolane 2-(3,7-Dimethylocta-2,6-dienyl)-1,3-dioxolane 31180-93-5 AI3-34821 EINECS 250-504-1