East Harbour Group is a trusted tetraethylene glycol supplier, providing Tetraethylene Glycol Dimethyl Ether (TEGDME) to industrial clients worldwide. Also known by its IUPAC name bis(2-(2-methoxyethoxy)ethyl) ether (CAS 143-24-8), TEGDME is a polar aprotic solvent and phase transfer catalyst widely used in chemical synthesis, gas treatment, electronics manufacturing, battery electrolytes and a range of speciality industrial applications. As an established supplier of tetraethylene glycol derivatives, we deliver a secure, compliant and efficient source of high-purity TEGDME (≥99% by GC, ≤0.2% water content), supporting customers who require consistent specification and reliable global supply. With molecular formula C₁₀H₂₂O₅ and molecular weight 222.3 g/mol, TEGDME's wide liquid range (−30°C to 275°C) and exceptional thermal stability make it well-suited to reactions and extractions at high temperatures or requiring specific solubility characteristics.
| CAS Number: | 143-24-8 |
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What is the CAS Number of Tetraethylene Glycol Dimethyl Ether?
The CAS number of Tetraethylene Glycol Dimethyl Ether (TEGDME) is 143-24-8. This unique Chemical Abstracts Service identifier is used to recognise the substance across chemical databases and regulatory systems worldwide. The corresponding EINECS (EC) number is 205-594-7, and the IUPAC name is bis(2-(2-methoxyethoxy)ethyl) ether.
What is the UN Number of Tetraethylene Glycol Dimethyl Ether?
TEGDME does not require a UN number for transport. It is classified as not restricted under ADR/RID (road), IMDG (sea) and IATA (air) regulations. This makes it considerably easier and more cost-effective to ship internationally compared with classified hazardous chemicals – a practical commercial advantage for buyers ordering across borders.
What is the Hazard Class of Tetraethylene Glycol Dimethyl Ether?
Tetraethylene Glycol Dimethyl Ether is not assigned a transport hazard class – it is unrestricted under ADR, IMDG and IATA regulations. However, under GHS classification it is identified as a Reproductive Toxicity Category 1B substance (H360Df: “May damage the unborn child. Suspected of damaging fertility.”). It is not classified as a skin or eye irritant, and is not a flammable liquid by transport definition (flash point 136°C). Always handle in accordance with the Safety Data Sheet.
What is the Packing Group of Tetraethylene Glycol Dimethyl Ether?
TEGDME is not assigned a Packing Group as it is not classified as a dangerous good for transport purposes. It can be shipped in standard chemical-grade industrial packaging without the additional labelling, documentation or surcharges associated with restricted hazardous materials.
Why Partner with East Harbour Group as Your Tetraethylene Glycol Supplier?
Sourcing speciality industrial chemicals like Tetraethylene Glycol Dimethyl Ether demands a partner with proven technical expertise, rigorous handling standards and a dependable global network. At East Harbour Group, we offer more than product supply – we provide reliability, technical knowledge and responsive service at every stage of your procurement process.
- Precision purity specification: we supply TEGDME to a controlled technical specification (≥99% tetraethylene glycol dimethyl ether by GC, ≤0.2% water by Karl Fischer, ≤1.0% monoether, Hazen colour ≤100), managed batch by batch to support consistent industrial outcomes.
- Established global reach: as an international tetraethylene glycol supplier, our distribution network supports customers across the UK, Europe, Asia and beyond – with the added advantage that TEGDME's unrestricted transport status enables simpler, faster international shipping by road, sea or air.
- Specialist chemical handling: TEGDME carries a Reproductive Toxicity Category 1B classification and requires informed handling. Our teams are trained in safe storage (preventing peroxide formation, avoiding oxygen exposure) and in supplying the product with full safety documentation to your operations.
- Risk-resilient supply chains: from supplier diversification to inventory planning, our operations are built to absorb volatility and reduce your exposure to disruption in tetraethylene glycol derivative supply.
- Compliance without compromise: our supply chain and warehousing operations are accredited by UKWA, BIFA and FTA, ensuring traceability, safety and professional standards throughout distribution.
Understanding the Tetraethylene Glycol Family
The tetraethylene glycol family includes a range of chemically related derivatives, each with distinct industrial applications. East Harbour Group supplies Tetraethylene Glycol Dimethyl Ether (TEGDME) – the dimethyl ether derivative – used primarily as a phase transfer catalyst, high-temperature polar aprotic solvent, and component in speciality electrolyte and gas-treatment formulations.
For context, other substances in the wider tetraethylene glycol family include:
- Tetraethylene glycol (CAS 112-60-7) – the parent glycol, used as a humectant, plasticiser, and in gas-treatment fluids.
- Tetraethylene glycol dimethacrylate (CAS 109-17-1) – a methacrylate ester used as a cross-linking monomer in UV-curable resins, dental composites and contact lenses. This is a chemically different product to TEGDME.
- Tetraethylene glycol monomethyl ether (CAS 23783-42-8) – the monomethyl ether form, used in coatings and chemical synthesis.
If your specification requires Tetraethylene Glycol Dimethyl Ether (TEGDME) specifically, you're on the right page. For enquiries about other tetraethylene glycol derivatives, contact our technical team – we can advise on availability, alternatives or specialist sourcing.
Industrial Applications and Tetraethylene Glycol Uses
TEGDME's unique combination of polar aprotic solvent properties, exceptional thermal stability and a wide liquid range (−30°C to 275°C) makes it well suited to a broad set of industrial and speciality chemical applications. Common tetraethylene glycol uses for the dimethyl ether form include:
Phase Transfer Catalysis
TEGDME is a widely used phase transfer catalyst in organic synthesis, helping reactants in immiscible phases interact more efficiently. Its high boiling point and chemical inertness make it especially useful for reactions at elevated temperatures.
High-Temperature Solvent for Chemical Synthesis
As a polar aprotic solvent with a boiling point of 275°C and decomposition temperature of 360°C, TEGDME is selected for reactions requiring elevated temperatures or specific solubility characteristics not provided by conventional solvents.
Battery Electrolytes and Energy Storage
TEGDME is used as an electrolyte solvent in lithium-ion and lithium-sulphur battery research and manufacturing, where its solvation properties and electrochemical stability are valued for high-performance energy storage applications.
Gas Treatment and CO₂ Absorption
TEGDME and related glycol ethers are used as physical solvents in industrial gas-treatment processes, including acid gas removal and CO₂ absorption in natural gas processing and carbon capture applications.
Inks, Coatings and Plasticisers
TEGDME functions as a high-boiling solvent and plasticiser in formulations for inks, industrial coatings and speciality polymers, where its low vapour pressure (0.099 Pa at 20°C) reduces solvent loss during processing.
Electronics, Cleaning and Speciality Manufacturing
TEGDME's solvent properties and thermal stability make it suitable for precision cleaning, electronics manufacturing processes and specialist chemical formulations where conventional solvents fall short.
Packaging & Global Delivery
As a global tetraethylene glycol supplier, East Harbour Group offers flexible packaging and multi-modal delivery options for TEGDME. The product's unrestricted transport classification simplifies international logistics significantly, allowing us to ship by road, sea or air without the surcharges, labelling requirements and routing restrictions that apply to classified dangerous goods.
Packaging Options
- ISO tanks for containerised bulk transport
- Intermediate Bulk Containers (IBCs)
- Drums for medium-volume orders
- Smaller packaging available on request for R&D and sample orders
Storage and Handling
TEGDME should be stored in tightly closed containers in well-ventilated areas, with air/oxygen exposure prevented to avoid peroxide formation. Refer to the Safety Data Sheet for full storage and handling guidance.
Physical properties of Tetraethylene Glycol Dimethyl Ether
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FAQs
We provide customised shipping solutions tailored to your Tetraethylene Glycol Dimethyl Ether orders. Whether you need to ship large or small quantities to various destinations, East Harbour Group offers personalised quotes designed to optimise your supply chain and logistics. Our experienced team is committed to ensuring timely delivery and efficient shipping of your tetraethylene glycol dimethyl ether.
Simply share your specifications with our sales team, and we will handle all the details to ensure a seamless process for you.
Yes – as an international tetraethylene glycol supplier, we deliver TEGDME worldwide via road, sea and air. Because TEGDME is not classified as a restricted dangerous good (unrestricted under ADR/RID, IMDG and IATA), international shipping is typically simpler and faster than for hazard-classified chemicals – with fewer surcharges, no special labelling requirements and broader carrier availability. Our team handles all logistics, documentation and customs.
No. TEGDME is classified as not restricted under ADR/RID (road), IMDG (sea) and IATA (air) transport regulations. It does not require a UN number, hazard class or packing group for shipping. This is a meaningful commercial advantage – it makes international supply simpler, faster and typically less expensive than for restricted dangerous goods. (Note: this does not mean TEGDME is hazard-free for handling. It carries a GHS reproductive toxicity classification – see the hazards FAQ for handling guidance.)
TEGDME is classified under GHS as a Reproductive Toxicity Category 1B substance (H360Df: “May damage the unborn child. Suspected of damaging fertility.”). This is the principal recognised hazard – it should be handled in accordance with the Safety Data Sheet, particularly by personnel who may be pregnant or of reproductive age. In testing, TEGDME has been shown not to cause skin or eye irritation and is not a skin sensitiser. It is not classified as flammable for transport purposes (flash point 136°C, closed cup) and is not a corrosive or oxidising substance. Standard PPE (gloves, eye protection) and adequate ventilation are recommended. Store sealed and away from air to prevent peroxide formation. Always consult the MSDS before handling.
For competitive pricing on TEGDME, including bulk and smaller orders, contact East Harbour Group directly. Pricing depends on volume, packaging, destination and required documentation – our sales team will provide a tailored quote with full technical specifications and lead times. Submit an online enquiry, email [email protected], or call +44 (0) 333 242 0100.
TEGDME is used across multiple industrial applications. Principal uses include phase transfer catalysis in organic synthesis, high-temperature polar aprotic solvent applications, battery electrolyte formulation (particularly in lithium-ion and lithium-sulphur cells), gas treatment and CO₂ absorption, and as a high-boiling component in inks, coatings and plasticisers. Common tetraethylene glycol uses for the dimethyl ether form take advantage of its wide liquid range (−30°C to 275°C) and exceptional thermal stability.
They are different chemicals. Tetraethylene Glycol Dimethyl Ether (TEGDME, CAS 143-24-8) is a polar aprotic solvent and phase transfer catalyst used in industrial chemistry, battery electrolytes and gas treatment. Tetraethylene glycol dimethacrylate (CAS 109-17-1) is a methacrylate ester used as a cross-linking monomer in UV-curable resins, dental composites and contact lenses. East Harbour Group supplies TEGDME; for dimethacrylate enquiries, contact our team and we can advise on availability or specialist sourcing.
Yes. East Harbour Group supplies TEGDME in bulk packaging including ISO tanks, IBCs and drums, with global delivery by road, sea or air. Smaller packaging is available on request for R&D, sample and specialist applications. Contact our sales team for volume-tiered pricing, lead times and packaging options tailored to your specification.
East Harbour Group is an established global supplier of Tetraethylene Glycol Dimethyl Ether and related tetraethylene glycol derivatives. Based in the UK, we deliver TEGDME worldwide via multi-modal logistics, with full technical documentation, batch traceability and UKWA, BIFA and FTA accreditation across the supply chain. As a tetraethylene glycol supplier with a controlled specification process, we support customers requiring consistent purity (≥99% by GC) for industrial applications including catalysis, solvent use, battery electrolytes and speciality chemistry.
Source TEGDME from a trusted tetraethylene glycol supplier. East Harbour Group delivers high-purity Tetraethylene Glycol Dimethyl Ether (TEGDME) worldwide with full documentation, batch traceability and unrestricted multi-modal transport.