(3S-cis)-3,6-dimethyl-1,4-dioxane-2,5-dione. It is a dimer of L-lactic acid. Puralact L is a white, crystalline solid that is commonly used to prepare L-lactide containing homopolymers or copolymers.
(3R-cis)-3,6-dimethyl-dioxane-2,5-dione. It is a dimer of D-lactic acid. Puralact D is a white, crystalline solid that is commonly used to prepare D-lactide containing homopolymers or copolymers.
