Chemical Structure


CAS Number26780-50-7
Systematic Name:1, 4-Dioxane-2, 5-dione-1-DL-3, 6-dimethyl-1, 4-dioxane-2, 5-dione copolymer, Glycolide - lactide copolymer, Glycolide-DL-lactide copolymer, Glycolide-DL-lactide polymer, Lactide - glycolide copolymer, Lactomer, Poly(dl-lactide-co-glycolide), Poly(glycolide - lactide), Poly(glycolide-co-lactide), Polyglactin
Molecular Formula:((C3H4O2)m x (C2H2O2)n
EPA Registry Name:Polylactic acid-polyglycolic acid copolymer
Former CAS Number(s)107760-14-5, 119652-89-0, 1255770-56-9, 130953-65-0, 31213-75-9, 339986-68-4
Substance Type:PLGA 85 15 | Inherent Viscosity : 0.15 - 0.25 dL/g | Acid terminated  | Lactide : Glycolide 85:15 | Mw 5-20 kDa Biodegradable Polymer, Excipient, Non-Active pharmaceutical ingredient, Nanoparticles.
Synonym: PLGA, Poly(D,L-lactide-co-glycolide) acid terminated, Poly(DL-lactide-co-glycolide), acid terminated

Qualitative Analysis

AppearanceWhite to tan colored solid powder
Inherent viscosity (IV)0.15 – 0.25 dL/g, in chloroform(25 °C)
Lactide by 1H NMR85% ( ± 2%)
Glycolide by 1H NMR15% ( ± 2%)

Quantitative Analysis

Assay≥ 98 %
Residual monomer≤ 0.2 %
Residual solventComplies
Heavy metalComplies


Poly(D, L-lactide-co-glycolide)- DLG 85-2A (PLGA) has been one of the most attractive Biodegradable and biocompatible polymers used to fabricate devices for diagnostics and other applications of clinical and basic science research, including vaccine, cancer, cardiovascular disease, and tissue engineering. In addition, PLGA and its copolymers are Essential in designing nanoparticles with desired characteristics such as biocompatibility, biodegradation, particle size, surface properties, drug release, and targetability and exhibit a wide range of erosion times. PLGA has been approved by the US FDA for use in drug delivery complex formulation and biodegradable orthopedic Medical implants.

Reference :

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