1,3-Dioxepin, 4,7-dihydro-2-methyl-2-(3-methylbutyl)- 4,7-Dihydro-2-isopentyl-2-methyl-1,3-dioxepin 4,7-Dihydro-2-methyl-2-(3-methylbutyl)-1,3-dioxepin 53338-05-9 EINECS 258-487-2