L-(-)-Lactide

• CAT Number: R055102
• CAS Number: 4511-42-6
• Molecular Formula: C6H8O4
• Molecular Weight: 144.13
• Purity: ≥95%
• Synonyms: (3S,6S)-3,6-Dimethyl-1,4-dioxane-2,5-dione; (3S-cis)-3,6-Dimethyl-1,4-dioxane-2,5-dione; L-3,6-Dimethyl-p-dioxane-2,5-dione; (-)-L-Dilactide; (S,S)-3,6-Dimethyl-1,4-dioxane-2,5-dione; L,L-Dilactide; L-Dilactide; L-Lactide; LL-Lactide; Purasorb L
• Storage: Room Temperature (Recommended in a cool and dark place)
• IUPAC Name: (3S,6S)-3,6-dimethyl-1,4-dioxane-2,5-dione
• InChI: InChI=1S/C6H8O4/c1-3-5(7)10-4(2)6(8)9-3/h3-4H,1-2H3/t3-,4-/m0/s1
• InChIKey: JJTUDXZGHPGLLC-IMJSIDKUSA-N
• SMILES: CC1C(=O)OC(C(=O)O1)C

L-(–)-Lactide(CAT: R055102) is the cyclic dimer of L-lactic acid and a key monomer for producing poly(L-lactide) (PLLA), a semi-crystalline biodegradable polymer widely used in biomedical materials. With its well-defined stereochemistry, L-(–)-lactide enables the synthesis of polymers with high tensile strength, slow degradation, and excellent biocompatibility. PLLA derived from L-(–)-lactide is extensively applied in resorbable sutures, orthopedic fixation devices, drug delivery systems, and tissue engineering scaffolds. The stereochemical purity of L-(–)-lactide also allows it to form stereocomplexes with D-(+)-lactide, creating materials with enhanced crystallinity and thermal stability. This makes L-(–)-lactide an indispensable building block for advanced bioresorbable medical devices.