1,4-DIOXANE,5,6-DIMETHYL,2-OXO 1,4-dioxan-2-one, 5,6-dimethyl- 5,6-dimethyl-1,4-dioxan-2-one InChI=1/C6H10O3/c1-4-5(2)9-6(7)3-8-4/h4-5H,3H2,1-2H