Description

Oxirane, Methyl-, Polymer With Oxirane, Acetate is a specialized polyether derivative, commonly known as a poly(ethylene glycol) methyl ether acetate. This compound is valued for its role as a versatile chemical intermediate and functional additive, offering a unique combination of hydrophilic polyether chains and reactive acetate end-groups. It is primarily utilized in industries such as pharmaceuticals, polymer synthesis, and specialty coatings, where its properties facilitate controlled reactions and product performance enhancement.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs, polymer-drug conjugates, and as a solubilizing agent for active pharmaceutical ingredients (APIs).
• Polymer Modification: Acts as a macromonomer or chain transfer agent in the production of polyurethanes, polyesters, and other specialty polymers to tailor flexibility and hydrophilicity.
• Surface Active Agent: Employed in the formulation of coatings, inks, and adhesives to improve wetting, dispersion, and flow properties.
• Bioconjugation Chemistry: Serves as a linker or spacer molecule for attaching functional groups, dyes, or targeting moieties in biotechnological applications.
• Personal Care & Cosmetics: Functions as a non-ionic surfactant or emollient in creams, lotions, and hair care products for enhanced texture and stability.
• Lubricant & Plasticizer Additive: Incorporated into industrial lubricants and polymer matrices to reduce friction and improve material processing characteristics.

Basic Information

Product Name	Oxirane, Methyl-, Polymer With Oxirane, Acetate
CAS No.	39362-51-1
Molecular Formula	Contact for details
Molecular Weight	Variable (dependent on polymer chain length 'n')
Synonyms	Poly(ethylene glycol) methyl ether acetate; mPEG Acetate; Methoxy PEG Acetate; Poly(oxy-1,2-ethanediyl), α-methoxy-ω-acetoxy-; Acetic acid, 2-[2-(2-methoxyethoxy)ethoxy]ethyl ester (for low MW); PEG Methyl Ether Acetate; α-Methoxy-ω-acetoxy-poly(oxyethylene); Acetylated Methoxy Polyethylene Glycol
EINECS	Contact for details

Quality Control

Our Oxirane, Methyl-, Polymer With Oxirane, Acetate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications. Key parameters monitored include molecular weight distribution (by GPC), degree of acetylation, residual solvents, and purity. A Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee traceability and quality assurance for your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (typically 15-25°C). This material is hygroscopic (moisture-sensitive); containers should be kept tightly sealed when not in use to prevent absorption of atmospheric moisture. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Average Molecular Weight (Mn)	As per customer grade (e.g., 350, 550, 750, 2000 Da)
Polydispersity Index (PDI)	< 1.20 (by GPC)
Assay (Acetyl Content)	> 95% (by NMR or Titration)
Water Content	< 0.5% (by KF Titration)
Residual Solvents	Meets ICH guidelines

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