Description

1,4-Dioxane-2,5-Dione,3,6-Dimethyl-, (3R,6S)- is a high-purity cyclic diester monomer, also known as L-lactide, which is the fundamental building block for synthesizing high-performance, biodegradable polylactic acid (PLA) polymers. Its stereochemical purity, defined by the (3R,6S) configuration, is critical for producing PLA with consistent mechanical properties and controlled degradation rates. This material is essential for manufacturers in the bioplastics, medical device, pharmaceutical, and sustainable packaging industries seeking reliable, high-quality raw materials for advanced polymer applications.

Application

• Primary monomer for Poly(L-lactic acid) (PLLA) synthesis via ring-opening polymerization (ROP).
• Production of medical implants and devices, including sutures, screws, stents, and drug delivery matrices, due to its biocompatibility and controlled resorption.
• Manufacturing of high-performance biodegradable plastics for sustainable packaging, disposable utensils, and films.
• Advanced 3D printing (additive manufacturing) filaments for biomedical and engineering prototypes.
• Synthesis of specialty copolymers, such as PLGA (poly(lactic-co-glycolic acid)), for tailored degradation profiles.
• Research and development in polymer chemistry, material science, and green chemistry initiatives.

Basic Information

Item	Detail
Product Name	1,4-Dioxane-2,5-Dione,3,6-Dimethyl-, (3R,6S)-
CAS No.	13076-19-2
Molecular Formula	C6H8O4
Molecular Weight	144.13 g/mol
Synonyms	L-Lactide; (3R,6S)-3,6-Dimethyl-1,4-dioxane-2,5-dione; (S,S)-Lactide; Poly(L-lactic acid) monomer; LL-Lactide; (3S,6S)-3,6-Dimethyl-1,4-dioxane-2,5-dione (enantiomer); L(-)-Lactide
EINECS	235-984-4

Quality Control

Our 1,4-Dioxane-2,5-Dione,3,6-Dimethyl-, (3R,6S)- is produced under stringent quality management systems to ensure batch-to-batch consistency and high stereochemical purity. Each lot is tested against rigorous specifications, including optical purity (enantiomeric excess), residual monomer, and moisture content. Certificates of Analysis (COA) documenting full test results are provided with every shipment. We support compliance with relevant pharmaceutical (ICH Q7) and industrial polymer standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under dry conditions, preferably with desiccant, to prevent hydrolysis and polymerization. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 99.0 %
Optical Purity (Enantiomeric Excess)	≥ 99.5 % ee
Melting Point	95 - 98 °C
Loss on Drying	≤ 0.5 %
Residual Solvents (GC)	Meets ICH limits
Heavy Metals	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.