Description

Tetraethyleneglycol Monomethyl Ether is a high-purity, versatile glycol ether solvent and chemical intermediate. This compound is valued for its excellent solvency power, low volatility, and favorable environmental profile compared to shorter-chain glycol ethers. It is essential for formulators and manufacturers in industries such as coatings, inks, electronics, and pharmaceuticals, where precise chemical performance and purity are critical.

Application

• Coatings & Inks: Acts as a coalescing agent and solvent in water-based and high-solids formulations, improving film formation and flow properties.
• Electronics: Used as a solvent and carrier fluid in photoresist strippers, cleaning agents, and solder mask formulations for PCB manufacturing.
• Chemical Synthesis: Serves as a versatile intermediate and protecting group reagent in organic synthesis and polymer production.
• Pharmaceuticals & Cosmetics: Functions as a solubilizer, penetration enhancer, and humectant in topical formulations and drug delivery systems.
• Industrial Cleaning: An effective component in heavy-duty degreasers and industrial cleaners for removing oils, greases, and resins.
• Adhesives & Sealants: Imparts controlled evaporation rates and enhances adhesion in various adhesive and sealant products.

Basic Information

Product Name	Tetraethyleneglycol Monomethyl Ether
CAS No.	23783-42-8
Molecular Formula	C9H20O5
Molecular Weight	208.25 g/mol
Synonyms	2-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]ethanol; Tetraethylene glycol monomethyl ether; Methyltetraglycol; Triethylene glycol monomethyl ether, ethoxylated; Methoxy tetraethylene glycol; PEG-4 methyl ether; 3,6,9,12-Tetraoxatetradecan-1-ol; Tetraglycol monomethyl ether
EINECS	245-897-1

Quality Control

Our Tetraethyleneglycol Monomethyl Ether is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets the highest standards for purity, consistency, and performance. A detailed Certificate of Analysis (COA) confirming identity, assay, and impurity profiles is provided with each shipment to guarantee supply reliability and product integrity for your critical processes.

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); containers must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Color (APHA)	≤ 50
Density (20°C)	1.090 - 1.110 g/mL
Refractive Index (20°C)	1.445 - 1.455

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