Description

Heptaethylene Glycol Monomethyl Ether is a high-purity, non-ionic surfactant and chemical intermediate belonging to the polyethylene glycol (PEG) ether family. This compound is valued for its excellent water solubility, low volatility, and ability to act as a versatile solubilizer and coupling agent in complex formulations. It is essential for manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries who require precise control over solubility, stability, and surface activity in their products.

Application

• As a solubilizer and stabilizer in pharmaceutical formulations, including injectables and topical creams.
• As a key intermediate in the synthesis of specialized surfactants and polymeric materials.
• As a coupling agent and co-solvent in agrochemical formulations to enhance the solubility of active ingredients.
• In the production of polyurethane dispersions (PUDs) and other water-based polymer systems.
• As a humectant and viscosity modifier in personal care and cosmetic products.
• In industrial cleaning formulations where its surfactant properties aid in soil removal and wetting.
• For research and development purposes in organic synthesis and material science.

Basic Information

Product Name	Heptaethylene Glycol Monomethyl Ether
CAS No.	4437-01-8
Molecular Formula	C15H32O8
Molecular Weight	340.41 g/mol
Synonyms	2-[2-[2-[2-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethanol; Polyethylene glycol monomethyl ether (n=7); PEG-7 methyl ether; Methoxyheptaethylene glycol; Heptaethylene glycol methyl ether; mPEG7-OH; 3,6,9,12,15,18,21-Heptaoxatritriacontan-1-ol; Triethylene glycol, monomethyl ether, tetraethoxylate
EINECS	224-653-9

Quality Control

Our Heptaethylene Glycol Monomethyl Ether is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. Certificates of Analysis (COA) documenting key parameters are provided to guarantee traceability and batch-to-batch consistency for your critical applications.

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 material is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
pH (5% solution)	5.0 - 7.0
Heavy Metals (as Pb)	≤ 10 ppm

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