tert-Butyl ethyl ether
Tert-Butyl ethyl ether (CAS: 637-92-3), with the chemical formula C2H5OC(CH3)3 and a molecular weight of 102.17 g/mol, is a chemical compound primarily utilized as a gasoline oxygenate. Its biodegradation has been a subject of scientific study. Tech Serve Solutions supplies this ether for research and chemical synthesis applications, adhering to rigorous quality standards.

Gasoline Oxygenate
Tert-Butyl ethyl ether has been employed as an additive in gasoline to enhance octane rating and promote cleaner combustion. Its use contributes to reducing harmful emissions from vehicles.
Chemical Synthesis Intermediate
This ether serves as a valuable building block in organic synthesis. Its specific structure allows for versatile reactions in the development of more complex chemical entities.
Research and Development
Tert-Butyl ethyl ether is utilized in laboratory settings for research purposes, including studies on its environmental fate and biodegradation processes by various microorganisms.
| Molecular weight | 102.17 |
|---|---|
| Linear formula | C2H5OC(CH3)3 |
| Assay | ≥97.0% (GC) |
| Boiling point | 72-73 °C(lit.) |
| Density | 0.742 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.375(lit.)n20/D 1.376 |
| Vapour pressure | 155 mmHg (25 °C) |
| Melting point | −97 °C(lit.) |
| Contains / stabiliser | ~0.01% 2,6-Di-tert-butyl-4-methlyphenol as stabilizer |
| Application | tert-Butyl ethyl ether has been used as gasoline oxygenate and its biodegradation by propane-oxidizing bacteria has been studied1. |


Hazard statements
- H225Highly flammable liquid and vapour
- H336May cause drowsiness or dizziness
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -19 °C / -2.2 °F |
| Transport (UN / ADR) | UN 3271 3 / PGII |
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11-67 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 tert-Butyl ethyl ether used for?
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Tert-Butyl ethyl ether is primarily used as a gasoline oxygenate and as a building block in chemical synthesis. It is also employed in research, including studies on its biodegradation.
What are the CAS number and chemical formula for tert-Butyl ethyl ether?
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The CAS number for tert-Butyl ethyl ether is 637-92-3, and its chemical formula is C2H5OC(CH3)3.
What grade and purity does Tech Serve Solutions supply for tert-Butyl ethyl ether?
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Tech Serve Solutions supplies tert-Butyl ethyl ether with a purity of ≥97.0% (GC). We do not represent this product as USP, BP, EP, or other pharmacopoeial grades.
How should tert-Butyl ethyl ether be handled safely?
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Tert-Butyl ethyl ether is highly flammable (H225) and may cause drowsiness or dizziness (H336). Handle with appropriate personal protective equipment, including eyeshields, gloves, and suitable respiratory protection, in a well-ventilated area away from ignition sources.
Does Tech Serve Solutions export tert-Butyl ethyl ether?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including tert-Butyl ethyl ether.
How can I request a quote or sample for tert-Butyl ethyl ether?
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Please contact our sales team directly through our website or by phone to request a quote or sample of tert-Butyl ethyl ether.
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