Ethyl tert-butyl ether
Also known as: tert-Butyl ethyl ether, t-Butyl ethyl ether, 2-Ethoxy-2-methylpropane, Propane, 2-ethoxy-2-methyl-, ETBE
Ethyl tert-butyl ether (CAS 637-92-3) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C6H14O and a molecular weight of 102.175 g/mol. Key properties include a melting point of −97 °C(lit.), a boiling point of 70.0±0.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of -19.4±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H336 — May cause drowsiness or dizziness. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 637-92-3
- Jingsj CID
- J-1367643-0
- Molecular Formula
- C6H14O
- Molecular Weight
- 102.175 g/mol
- Category
- Ethers
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | −97 °C(lit.) |
|---|---|
| Boiling Point | 70.0±0.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | -19.4±0.0 °C |
| Exact Mass | 102.104462 |
| PSA | 9.23000 |
| LogP | 1.68 |
| Vapor Pressure | 142.6±0.1 mmHg at 25°C |
| Refractive Index | 1.387 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H336 — May cause drowsiness or dizziness
Customs & Trade Information
| HS Code | 2909199090 |
|---|---|
| Summary | 2909199090. other acyclic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Ethyl tert-butyl ether?
The CAS number of Ethyl tert-butyl ether is 637-92-3.
What are the molecular formula and molecular weight of Ethyl tert-butyl ether?
Ethyl tert-butyl ether has molecular formula C6H14O and molecular weight 102.175 g/mol.
Is Ethyl tert-butyl ether hazardous?
Ethyl tert-butyl ether has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H336 — May cause drowsiness or dizziness.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Ethyl tert-butyl ether (CAS 637-92-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1367643-0 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.