1,3-DIOXOLANE, 4-METHYL-2-PROPENYL- 1,3-Dioxolane, 4-methyl-2-(1-propenyl)- 4-Methyl-2-propenyl-1,3-dioxolane 5-19-01-00210 (Beilstein Handbook Reference) 6413-13-4 AI3-22615 BRN 1341816 NSC 408702