Tetraethyleneglycol monomethyl ether
Tetraethyleneglycol monomethyl ether (CAS 23783-42-8, C9H20O5) is a versatile chemical compound with a molecular weight of 208.25 g/mol. This technical grade material serves as a valuable intermediate and solvent in various industrial applications. Its chemical structure lends itself to use in materials science and polymer chemistry, contributing to the development of advanced materials and formulations.

Solvent Applications
Tetraethyleneglycol monomethyl ether functions as an effective solvent in diverse chemical processes. Its properties make it suitable for applications requiring moderate polarity and a high boiling point, facilitating reactions and formulations.
Materials Science Intermediate
This compound is utilised as an intermediate in the synthesis of specialized materials. Its incorporation into polymer chains or formulations can impart desired characteristics, contributing to advancements in materials science.
Polymer Science
As a monofunctional PEG derivative, it finds utility in polymer science, particularly in the synthesis and modification of poly(ethylene glycol) and poly(ethylene oxide) based polymers. It can be used to introduce specific end-group functionalities.
| Molecular weight | 208.25 |
|---|---|
| Empirical formula | C9H20O5 |
| Grade | technical grade |
| Density | 1.045 g/mL at 25 °C |
| Refractive index | n20/D 1.444 |
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Water hazard class (WGK, DE) | 1 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mol Wt | average Mn 200 |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Tetraethyleneglycol monomethyl ether used for?
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Tetraethyleneglycol monomethyl ether is used as a solvent and an intermediate in materials science and polymer science, particularly in the synthesis of monofunctional PEGs and poly(ethylene glycol) derivatives.
What is the CAS number and formula for Tetraethyleneglycol monomethyl ether?
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The CAS number is 23783-42-8 and the empirical formula is C9H20O5.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetraethyleneglycol monomethyl ether in technical grade. We do not represent this product as USP, BP, or EP grade.
What are the safety considerations for handling Tetraethyleneglycol monomethyl ether?
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Handling Tetraethyleneglycol monomethyl ether requires appropriate personal protective equipment, including eyeshields and gloves. A half-mask respirator is recommended for both EU and US usage due to potential vapour exposure. It has a flash point of 113 °C (235.4 °F).
How is Tetraethyleneglycol monomethyl ether packed, shipped, and exported?
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Tech Serve Solutions meticulously packs, handles, and exports Tetraethyleneglycol monomethyl ether in compliance with international regulations to ensure safe and secure delivery worldwide.
How can I request a sample or quote for Tetraethyleneglycol monomethyl ether?
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To request a sample or obtain a quotation for Tetraethyleneglycol monomethyl ether, please contact our sales team directly through our website or by phone.
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