Product Name: 1,4-Dioxane-2,5-dione--3,6-dimethyl-1,4-dioxane-2,5-dione (1/1)
Catalog No.: SS137385
CAS No.: 26780-50-7
Grade: Injectable Grade (50/50, Acid terminated)
Molecular Formula: C10H12O8
Molecular Weight: 260.20

1,4-Dioxane-2,5-dione–3,6-dimethyl-1,4-dioxane-2,5-dione (1:1) (CAS 26780-50-7) is a cyclic diester composed of glycolide and lactide units, commonly known as a glycolide-lactide copolymer precursor. Its biodegradable and biocompatible characteristics make it an important material for biomedical, pharmaceutical, and advanced polymer applications.

Specifications:
- Grade: Injectable Grade
- Appearance: White to light yellow solid
- Inherent Viscosity: 0.45–0.60 dL/g
- Residual Monomer: ≤2.0%
- Monomer Ratio, Lactide: 47%–53%
- Monomer Ratio, Glycolide: 47%–53%
- Residual Solvent, Total: ≤1000 µg/g
- Residual Solvent, Acetone: ≤100 µg/g
- Residual Solvent, Toluene: ≤100 µg/g
- Water: ≤0.5%
- Tin: ≤150 µg/g
- Elemental Impurities (Pb): ≤10 µg/g
- Bacterial Endotoxins: ≤0.3 EU/mg
- Microbial Limits: ≤100 CFU/g
- Escherichia coli: Absent

Applications:
- Biomedical implants and devices
- Pharmaceutical formulations
- Advanced polymer synthesis
- Biodegradable materials
- Drug delivery systems

This product is a high-purity injectable-grade copolymer precursor for biomedical and pharmaceutical applications.