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Diethylzinc

Also known as: Diethyl zinc, Zinc ethide, Et2Zn, Zinc diethyl, Zinc, diethyl-, ZnEt2

Diethylzinc (CAS 557-20-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H10Zn and a molecular weight of 123.531 g/mol. Key properties include a melting point of −28 °C(lit.), a boiling point of 98 °C, a density of 1.205 g/mL at 25 °C(lit.) and a flash point of 7.2 °C. It is classified under GHS with signal word Danger and hazard statements H250, H260 and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
557-20-0
Jingsj CID
J-16-8
Molecular Formula
C4H10Zn
Molecular Weight
123.531 g/mol
Category
Organic Compounds
Last updated
11/2/2026
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Physicochemical Properties

Melting Point−28 °C(lit.)
Boiling Point98 °C
Density1.205 g/mL at 25 °C(lit.)
Flash Point7.2 °C
Exact Mass122.007393
LogP1.94530
Refractive Indexn20/D 1.498(lit.)
Additional PropertyREACTS VIOLENTLY

GHS Safety & Compliance

Flammable / Corrosion / Environmental HazardSignal word: Danger
  • H250
  • H260
  • H314 — Causes severe skin burns and eye damage
  • H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of Diethylzinc?

The CAS number of Diethylzinc is 557-20-0.

What are the molecular formula and molecular weight of Diethylzinc?

Diethylzinc has molecular formula C4H10Zn and molecular weight 123.531 g/mol.

Is Diethylzinc hazardous?

Diethylzinc has GHS signal word Danger and hazard statements H250; H260; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Diethylzinc?

For Diethylzinc, Upstream Products: Bromoethane, Zinc chloride, Iodoethane; Downstream Products: Tetraethylmethane, N-Methylethanamine, 1-Phenyl-1-pentyn-3-ol.

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

Last updated:

How to cite: Jingsj. "Diethylzinc (CAS 557-20-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16-8 (accessed 2026-11-09).

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