Description

Pentaethylene Glycol Monomethyl Ether is a high-purity, hydrophilic polyether glycol derivative characterized by its terminal methoxy group and multiple ethylene oxide units. This structure makes it an invaluable non-ionic surfactant and versatile chemical intermediate, offering excellent solubility in water and many organic solvents. It is primarily used by formulators and researchers in the pharmaceutical, agrochemical, and specialty chemical industries for applications requiring precise control over solubility and surface activity.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs and active pharmaceutical ingredients (APIs) where its hydrophilic chain aids in solubility enhancement.
• Non-ionic Surfactant: Acts as a wetting agent, emulsifier, or dispersant in agrochemical formulations, coatings, and cleaning products.
• Polymer & Resin Modifier: Serves as a reactive diluent or plasticizer to modify the flexibility and hydrophilicity of polyurethanes, epoxy resins, and other polymers.
• Chemical Synthesis Solvent/Co-solvent: Employed as a polar, high-boiling point solvent for reactions requiring a non-protic, thermally stable medium.
• Linker Molecule: Utilized in bioconjugation and material science to create spacer arms between molecules, leveraging its defined polyethylene glycol (PEG) chain length.
• Electrolyte Additive: Investigated for use in battery electrolytes to improve stability and performance.

Basic Information

Product Name	Pentaethylene Glycol Monomethyl Ether
CAS No.	23778-52-1
Molecular Formula	C11H24O6
Molecular Weight	252.31 g/mol
Synonyms	2-[2-[2-[2-(2-Methoxyethoxy)ethoxy]ethoxy]ethoxy]ethanol; 3,6,9,12-Tetraoxatetradecan-1-ol, 14-methoxy-; PEG-5 Methyl Ether; Methoxypentaethylene Glycol; MPEG-5; 1-Hydroxy-3,6,9,12-tetraoxatetradecane; Ethanol, 2-[2-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]ethoxy]-; Monomethyl Pentaethylene Glycol
EINECS	Contact for details

Quality Control

Our Pentaethylene Glycol Monomethyl Ether is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for sensitive industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with every shipment to guarantee traceability and consistency.

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/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Refractive Index (20°C)	1.450 - 1.455
Density (20°C)	~1.10 g/mL

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