Skip to main content

Tetracyanoethylene

Also known as: 1,1,2,2-Ethenetetracarbonitrile, 1,1,2,2-Ethylenetetracarbonitrile, 1,1,2,2-Tetracyanoethene, 1,1,2,2-Tetracyanoethylene, D2,2'-Bimalononitrile, EINECS 211-578-0, Ethen-1,1,2,2-tetracarbonitril, Ethene, tetracyano-, Ethylene, tetracyano-, MFCD00001850, TCNE, Tetracyanoethene, Tetracyanoαthylen(ausderSchmelze), delta(sup2,2’)-bimalononitrile, delta2,2'-Bimalononitrile, ethene-1,1,2,2-tetracarbonitrile, ethylene-1,1,2,2-tetracarbonitrile, tetracyanoethene, δ2,2'-Bimalononitrile

Tetracyanoethylene (CAS 670-54-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C6N4 and a molecular weight of 128.091 g/mol. Key properties include a melting point of 197-199 °C(lit.), a boiling point of 219.8±35.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 94.4±19.8 °C. It is classified under GHS with signal word Danger and hazard statements H300, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
670-54-2
Jingsj CID
J-1503823-2
Molecular Formula
C6N4
Molecular Weight
128.091 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point197-199 °C(lit.)
Boiling Point219.8±35.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point94.4±19.8 °C
Exact Mass128.012299
PSA95.16000
LogP-1.63
Vapor Pressure0.1±0.4 mmHg at 25°C
Refractive Index1.532
Additional Propertyhydrolyzes

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H300
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled

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 Tetracyanoethylene?

The CAS number of Tetracyanoethylene is 670-54-2.

What are the molecular formula and molecular weight of Tetracyanoethylene?

Tetracyanoethylene has molecular formula C6N4 and molecular weight 128.091 g/mol.

Is Tetracyanoethylene hazardous?

Tetracyanoethylene has GHS signal word Danger and hazard statements H300; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of Tetracyanoethylene?

For Tetracyanoethylene, Upstream Products: Dibromomalononitrile, Malononitrile, Disulfur dichloride; Downstream Products: cyanogen, Tetracyanoethylene, Tetracyanoethylene Oxide.

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

Last updated:

How to cite: Jingsj. "Tetracyanoethylene (CAS 670-54-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503823-2 (accessed 2026-11-07).

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