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Thallium(I) ethoxide

Also known as: Thallium ethoxide, Thallous ethoxide, Thallium(I) ethanolate, Ethoxythallium(I), Thallium monoethoxide, Thallium ethylate, Ethanol, thallium(1+) salt, Thallium monoethylate, Thallium(I)ethylate

Thallium(I) ethoxide (CAS 20398-06-5) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C2H5OTl and a molecular weight of 249.44400 g/mol. Key properties include a melting point of -3°C, a boiling point of 130°C, a density of 3.522 g/mL at 25 °C(lit.) and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H300, H330 — Fatal if inhaled and H373 — May cause damage to organs through prolonged exposure. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
20398-06-5
Jingsj CID
J-48103-6
Molecular Formula
C2H5OTl
Molecular Weight
249.44400 g/mol
Category
Solvents
Last updated
11/3/2026

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Physicochemical Properties

Melting Point-3°C
Boiling Point130°C
Density3.522 g/mL at 25 °C(lit.)
Flash Point>110.0 °C
Exact Mass250.00800
PSA9.23000
LogP0.48720
Appearanceliquid,cloudy, dense
Vapor Pressure82.8mmHg at 25°C
Refractive Indexn20/D 1.676(lit.)

GHS Safety & Compliance

Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
  • H300
  • H330 — Fatal if inhaled
  • H373 — May cause damage to organs through prolonged exposure
  • H411 — Toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of Thallium(I) ethoxide?

The CAS number of Thallium(I) ethoxide is 20398-06-5.

What are the molecular formula and molecular weight of Thallium(I) ethoxide?

Thallium(I) ethoxide has molecular formula C2H5OTl and molecular weight 249.44400 g/mol.

Is Thallium(I) ethoxide hazardous?

Thallium(I) ethoxide has GHS signal word Danger and hazard statements H300; H330 — Fatal if inhaled; H373 — May cause damage to organs through prolonged exposure.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Thallium(I) ethoxide (CAS 20398-06-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48103-6 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.