Tetraethylammonium hydroxide
Also known as: TEAH, Tetraethylammonium hydroxide solution, N,N,N-Triethylethanaminium hydroxide, Tetraethylazanium hydroxide, IPC-TEA-OH, TENOH
Tetraethylammonium hydroxide (CAS 77-98-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H21NO and a molecular weight of 147.258 g/mol. Key properties include a melting point of -98ºC, a boiling point of 110 °C, a density of 1.023 g/mL at 25 °C and a flash point of 11 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 77-98-5
- Jingsj CID
- J-32749-1
- Molecular Formula
- C8H21NO
- Molecular Weight
- 147.258 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -98ºC |
|---|---|
| Boiling Point | 110 °C |
| Density | 1.023 g/mL at 25 °C |
| Flash Point | 11 °C |
| Exact Mass | 147.162308 |
| PSA | 23.06000 |
| LogP | 1.70600 |
| Refractive Index | n20/D 1.422 |
| Additional Property | SOLUBLE |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2923900090 |
|---|---|
| Summary | 2923900090 other quaternary ammonium salts and hydroxides。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Tetraethylammonium hydroxide?
The CAS number of Tetraethylammonium hydroxide is 77-98-5.
What are the molecular formula and molecular weight of Tetraethylammonium hydroxide?
Tetraethylammonium hydroxide has molecular formula C8H21NO and molecular weight 147.258 g/mol.
Is Tetraethylammonium hydroxide hazardous?
Tetraethylammonium hydroxide has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of Tetraethylammonium hydroxide?
For Tetraethylammonium hydroxide, Upstream Products: Diethyl sulfate, Ethanol, Triethylamine; Downstream Products: Tetraethylammonium tetrafluoroborate, Triethylamine, Tetraethylammonium fluoride dihydrate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Tetraethylammonium hydroxide (CAS 77-98-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32749-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.