Description

Polyethylenglycol11 CAS NO 8038-37-7 is a versatile polyethylene glycol (PEG) derivative, specifically a polymer of ethylene oxide with an average molecular weight corresponding to the "11" designation. This compound is valued for its excellent water solubility, low toxicity, and ability to act as a humectant, solvent, and viscosity modifier. It is a critical raw material for formulators in the pharmaceutical, personal care, and chemical synthesis industries seeking reliable performance and consistent quality.

Application

• Pharmaceutical Excipient: Used as a binder, plasticizer in tablet coatings, and as a base for ointments and suppositories.
• Personal Care & Cosmetics: Functions as a humectant, thickener, and solvent in creams, lotions, and hair care products.
• Chemical Synthesis: Serves as a starting material or intermediate for producing surfactants, lubricants, and functional polymers.
• Industrial Applications: Acts as a processing aid, plasticizer, and anti-static agent in various manufacturing processes.
• Laboratory Reagent: Utilized in biochemical research and as a phase-forming polymer in aqueous two-phase systems.

Basic Information

Product Name	Polyethylenglycol11
CAS No.	8038-37-7
Molecular Formula	H(OCH₂CH₂)ₙOH (n ~ 11)
Molecular Weight	~ 550 g/mol (average)
Synonyms	PEG 550; Polyethylene Glycol 550; Macrogol 550; α-Hydro-ω-hydroxypoly(oxy-1,2-ethanediyl); Poly(ethylene oxide); Polyoxyethylene; Oxirane homopolymer; HO(CH₂CH₂O)₁₁H
EINECS	232-456-7

Quality Control

Our Polyethylenglycol11 is manufactured under a strict quality management system. Each batch is tested to ensure it meets specifications for identity, purity, and key physical parameters. We can supply material compliant with various pharmacopeial standards (e.g., USP-NF, Ph. Eur.) upon request. A comprehensive Certificate of Analysis (COA) documenting all test results is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); ensure containers are sealed after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White waxy solid or viscous liquid
Identification (IR)	Conforms
Assay (by hydroxyl value)	101.5 - 104.5 mg KOH/g
Average Molecular Weight	500 - 600 g/mol
pH (5% solution)	4.5 - 7.5
Water Content	≤ 1.0 %
Residue on Ignition	≤ 0.1 %

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