Description

Resomer Lr 706 S, Poly(L-Lactide-Co-D,L-Lactide) is a high-purity, bioresorbable copolymer designed for advanced medical and pharmaceutical applications. This specific grade offers a controlled degradation profile and excellent biocompatibility, making it a critical material for sustained-release drug delivery systems. It is essential for manufacturers in the biomedical, pharmaceutical, and tissue engineering sectors seeking reliable, medical-grade polymer excipients. CAS No. 52305-30-3.

Application

This medical-grade copolymer is engineered for applications where controlled biodegradability and biocompatibility are paramount.

• Controlled-Release Drug Delivery Systems: As a matrix former for microspheres, implants, and injectable depots.
• Tissue Engineering Scaffolds: Providing a temporary, resorbable structure for cell growth and tissue regeneration.
• Absorbable Surgical Sutures and Medical Devices: For applications requiring strength that gradually transfers to healing tissue.
• Orthopedic Fixation Devices: Such as pins, screws, and plates that safely degrade in the body.
• Advanced Wound Care: In bioresorbable membranes and dressings.

Basic Information

Item	Details
Product Name	Resomer Lr 706 S, Poly(L-Lactide-Co-D,L-Lactide)
CAS No.	52305-30-3
Molecular Formula	(C3H4O2)n
Molecular Weight	Varies by grade and inherent viscosity
Synonyms	Poly(L-Lactide-co-D,L-Lactide); PLDLLA; Poly(D,L-Lactide-co-L-Lactide); Poly(lactic acid) copolymer; PLA copolymer; Resomer® LR 706 S; Bioresorbable Poly(lactide); Absorbable Poly(lactide) Copolymer; (3S)-3-[(2S)-2-Methyl-3,6-dioxo-1,4-dioxan-5-yl]oxy-2-methyl-5-oxo-1,4-dioxane-2-carboxylic acid homopolymer
EINECS	Contact for details

Quality Control

Our Resomer Lr 706 S is produced under strict quality management systems suitable for pharmaceutical applications. Each batch is tested to ensure compliance with critical parameters such as inherent viscosity, residual monomer content, and glass transition temperature. A comprehensive Certificate of Analysis (COA) detailing purity, molecular weight, and other relevant specifications is provided with every shipment to support your regulatory and quality assurance requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place 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 molecular weight degradation. For long-term storage, consider storing under an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms
Inherent Viscosity	Specification available upon request
Glass Transition Temp (Tg)	Specification available upon request
Residual Monomer (Lactide)	< 0.5% (by HPLC)
Residual Solvents	Meets ICH guidelines
Heavy Metals	< 10 ppm
Loss on Drying	< 1.0%

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