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Copper(I) cyanide

Also known as: Cuprous cyanide, Copper cyanide (CuCN), Copper(+1) cyanide

Copper(I) cyanide (CAS 544-92-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula CCuN and a molecular weight of 89.56340 g/mol. Key properties include a melting point of 474 °C(lit.), a density of 2.92 g/mL at 25 °C(lit.) and a flash point of 140°C(lit.). It is classified under GHS with signal word Danger and hazard statements H300, H310 and H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
544-92-3
Jingsj CID
J-1172173-6
Molecular Formula
CCuN
Molecular Weight
89.56340 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point474 °C(lit.)
Density2.92 g/mL at 25 °C(lit.)
Flash Point140°C(lit.)
Exact Mass88.93270
PSA23.79000
LogP0.01428

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger
  • H300
  • H310
  • H330 — Fatal if inhaled
  • H410 — Very toxic to aquatic life with long lasting effects

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Copper(I) cyanide?

The CAS number of Copper(I) cyanide is 544-92-3.

What are the molecular formula and molecular weight of Copper(I) cyanide?

Copper(I) cyanide has molecular formula CCuN and molecular weight 89.56340 g/mol.

Is Copper(I) cyanide hazardous?

Copper(I) cyanide has GHS signal word Danger and hazard statements H300; H310; H330 — Fatal if inhaled.

What are the upstream and downstream products of Copper(I) cyanide?

For Copper(I) cyanide, Upstream Products: Copper(II) sulfate pentahydrate, Copper(I) iodide, Mercury cyanide; Downstream Products: 3-bromotetrahydro-2H-pyran-2-carbonitrile, 2-Chloro-5-fluoroisonicotinonitrile, 5,6-Dihydro-4H-pyran-2-carbonitrile.

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

Last updated:

How to cite: Jingsj. "Copper(I) cyanide (CAS 544-92-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1172173-6 (accessed 2026-11-09).

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