1,9-dioxaspiro[5.5]undec-2-ene, 5,5-dimethyl- 5,5-dimethyl-1,9-dioxaspiro[5.5]undec-2-ene InChI=1/C11H18O2/c1-10(2)4-3-7-13-11(10)5-8-12-9-6-11/h3,7H,4-6,8-9H2,1-2H