Butyl ethyl ether
Also known as: 1-ethoxybutane, 1-ethoxy-butane, 2-n-butoxyethane, Butane,1-ethoxy, Ethyl butyl ether, Ethyl n-butyl ether, n-Butyl ethyl ether, n-C4H9OC2H5, ethoxy-n-butane, Ether, butyl ethyl, Ether ethylbutylique, MFCD00009455, EINECS 211-055-7, UN1179
Butyl ethyl ether (CAS 628-81-9) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C6H14O and a molecular weight of 102.17500 g/mol. Key properties include a melting point of -124 °C, a boiling point of 91-92 °C(lit.), a density of 0.75 g/mL at 25 °C(lit.) and a flash point of -5.6 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H302 — Harmful if swallowed. It is listed by 1 supplier, from 11.61 to 14.00 CNY. Record last updated Nov 2, 2026.
- CAS No.
- 628-81-9
- Jingsj CID
- J-1354068-7
- Molecular Formula
- C6H14O
- Molecular Weight
- 102.17500 g/mol
- Category
- Ethers
- Last updated
- 11/2/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
In Stock | >99.0%(GC) 500ml | ¥5,805.00 | $1.74 /mlBest ¥11.61/ml CNY | CN China MOQ 500ml | |
In Stock | >99.0%(GC) 25ml | ¥350.00 | $2.1 /ml ¥14.00/ml CNY | CN China MOQ 25ml |
Physicochemical Properties
| Melting Point | -124 °C |
|---|---|
| Boiling Point | 91-92 °C(lit.) |
| Density | 0.75 g/mL at 25 °C(lit.) |
| Flash Point | -5.6 °C |
| Exact Mass | 102.10400 |
| PSA | 9.23000 |
| LogP | 1.82300 |
| Vapor Pressure | 52 mm Hg ( 25 °C) |
| Refractive Index | n20/D 1.382(lit.) |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H302 — Harmful if swallowed
Frequently Asked Questions
What is the CAS number of Butyl ethyl ether?
The CAS number of Butyl ethyl ether is 628-81-9.
What are the molecular formula and molecular weight of Butyl ethyl ether?
Butyl ethyl ether has molecular formula C6H14O and molecular weight 102.17500 g/mol.
Which suppliers offer Butyl ethyl ether?
1 supplier(s) listed; reference unit price ¥11.61–14.00 /ml.
Is Butyl ethyl ether hazardous?
Butyl ethyl ether has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H302 — Harmful if swallowed.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Butyl ethyl ether (CAS 628-81-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1354068-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.