Description

Dl-Lactide CAS NO 97-73-4 is a high-purity cyclic diester monomer, a crucial building block for synthesizing polylactic acid (PLA) and its copolymers. Its primary value lies in enabling the production of biodegradable and bio-based polymers, which are essential for sustainable material solutions across multiple industries. This product is specifically targeted at manufacturers in the biodegradable plastics, medical devices, pharmaceutical, and advanced materials sectors who require a reliable and consistent monomer source for ring-opening polymerization (ROP).

Application

• Biodegradable Polymer Synthesis: Primary monomer for the production of poly(DL-lactic acid) (PDLLA) via ring-opening polymerization (ROP).
• Medical & Pharmaceutical Devices: Used to manufacture bioresorbable sutures, drug delivery microspheres, implants, and surgical meshes.
• Controlled Release Systems: Key component in creating polymer matrices for the sustained and targeted release of active pharmaceutical ingredients (APIs).
• 3D Printing Filaments: Serves as a raw material for producing biodegradable and biocompatible filaments for additive manufacturing.
• Packaging Materials: Foundation for creating compostable films, coatings, and rigid packaging to replace conventional plastics.
• Specialty Copolymers: Reacted with other monomers like glycolide or ε-caprolactone to tailor polymer properties for specific performance needs.

Basic Information

Item	Details
Product Name	Dl-Lactide
CAS No.	97-73-4
Molecular Formula	C6H8O4
Molecular Weight	144.13 g/mol
Synonyms	DL-3,6-Dimethyl-1,4-dioxane-2,5-dione; rac-Lactide; (RS)-3,6-Dimethyl-1,4-dioxane-2,5-dione; meso-Lactide; DL-Dilactide; Cyclic DL-lactic acid dimer; (±)-Lactide
EINECS	202-599-6

Quality Control

Our Dl-Lactide is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity suitable for demanding applications like medical-grade polymer synthesis. We adhere to relevant industry guidelines and provide comprehensive Certificates of Analysis (COA) for each batch, detailing key parameters such as assay, enantiomeric purity, moisture content, and residual monomer levels. Specifications can be aligned with customer requirements for pharmaceutical (GMP) or industrial applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and maintain purity. Keep away from heat sources and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.0 %
Melting Point	124 - 127 °C
Water Content (KF)	≤ 0.1 %
Residual Lactic Acid	≤ 0.5 %
Heavy Metals (as Pb)	≤ 10 ppm

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