PLCL 70:30 | CAS No : 65408-67-5

PLCL 70:30 | Poly(L-lactide-co-ε-caprolactone) | is an Ester terminated Medical Grade copolymer of L-lactide and ε-caprolactone with an inherent viscosity midpoint of 1.2 dl/g. Biodegradable, biocompatible, and bioresorbable copolymer composed of L-Lactide and ε-Caprolactone. This semi-crystalline material has been used in the fabrication of research medical devices and research tissue engineering solutions, such as orthopedic or soft tissue fixation devices. Degradation of these materials has been thoroughly studied and has been shown to be safely resorbed by the body after implantation. Modification of molecular weight and polymer composition allows for control of the degradation rate and mechanical stability of the polymer.

CAS Number:

Manufacturing Process:

Molecular Formula:

Price (per Gram)

 360.00 / per Gram
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Additional information


(3S-cis)-3, 4-Dioxane-2, 5-dione copolymer, 6-dimethyl-1, PLCL, polymer with 2-oxepanone

Substance Type

Biodegradable Polymer, Excipient, Nanoparticles, Non-Active pharmaceutical ingredient, PLCL 70:30, Inherent Viscosity: 0.90 – 1.20 dL/g

EPA Registry Name

L-lactide/Caprolactone copolymer



Lactide by NMR

ε-caprolactone by NMR

Viscosity (0.5% in CHCl3 at 30°C)

Residual monomer L-Lactide

Residual monomer ε-caprolactone

Residual solvent acetone

Residual solvent toluene

Heavy metal


Sulphated Ash



Bacterial Endotoxins

Molecular Weight

~120,000 da

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