1,3-Dioxane-4,6-dione,5-[2-(2,5-difluorophenyl)-1-hydroxyethylidene]-2,2-dimethyl-
1,3-Dioxane-4,6-dione,5-[2-(2,5-difluorophenyl)-1-hydroxyethylidene]-2,2-dimethyl- ·
1,3-Dioxane-4,6-dione,5-[2-(2,5-difluorophenyl)-1-hydroxyethylidene]-2,2-dimethyl- ·