1,4-Dioxane-2,5-dione, 3,6-dimethyl-, homopolymer 26680-10-4 26969-66-4 3,6-Dimethyl-1,4-dioxane-2,5-dione homopolymer Poly(D,L-lactide) Poly(DL-lactide) Poly(L-lactide) Poly(lactide) Resomer R208