1,3-Dioxolane, 4,4'-(oxybis(methylene))bis- 1,3-Dioxolone, 4,4'-(oxybis(methylene))bis- 4,4'-(Oxybis(methylene))bis-1,3-dioxolone 4,4'-Oxi-(bismethyl)-bis-1,3-dioxolan 56552-15-9 Diglycerindiformal