1,4-Dioxane-2,5-dione, 3,6-dimethyl- 3,6-Dimethyl-2,5-dioxo-1,4-dioxane 95-96-5 Lactide NSC403080 Propanoic acid, 2-hydroxy-, bimol. cyclic ester p-Dioxane-2,5-dione, 3,6-dimethyl-