1,3-Dioxane, 2-(7,7-dimethoxy-3-methylbicyclo(2.2.1)hept-5-en-2-yl)- 2-(2-(1,3-Dioxanyl))-3-methyl-7,7-dimethoxy-5-norbornene 2-Norbornen-7-one, 5-(m-dioxan-2-yl)-6-methyl-, dimethyl acetal 32154-96-4 5-(m-Dioxan-2-yl)-6-methyl-2-norbornen-7-one dimethyl acetal