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1,2,4,5-Tetracyanobenzene

1,2,4,5-四氰苯

Also known as: 1,2,4,5-Benzenetetracarbonitrile, Pyromellitic acid tetranitrile, Pyromellitic nitrile, Pyromellitic tetranitrile, Pyromellitotetranitrile, benzene-1,2,4,5-tetracarbonitrile, 1,2,4,5-Benzenetetranitrile, 1,2,4,5-Benzentetrakarbonitril, Benzene, 1,2,4,5-tetracyano-, Benzol-1,2,4,5-tetracarbonitril, MFCD00043481, TCNB, sym-Tetracyanobenzene

1,2,4,5-Tetracyanobenzene (CAS 712-74-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H2N4 and a molecular weight of 178.150 g/mol. It is also known as 1,2,4,5-Benzenetetracarbonitrile, Pyromellitic acid tetranitrile and Pyromellitic nitrile. Key properties include a melting point of 265-268 °C(lit.), a boiling point of 446.1±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 235.3±22.6 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
712-74-3
Jingsj CID
J-1348-6
Molecular Formula
C10H2N4
Chinese Name
1,2,4,5-四氰苯
Molecular Weight
178.150 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point265-268 °C(lit.)
Boiling Point446.1±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point235.3±22.6 °C

GHS Safety & Compliance

Acute ToxicitySignal word: Danger

Frequently Asked Questions

What is the CAS number of 1,2,4,5-Tetracyanobenzene?

The CAS number of 1,2,4,5-Tetracyanobenzene is 712-74-3.

What are the molecular formula and molecular weight of 1,2,4,5-Tetracyanobenzene?

1,2,4,5-Tetracyanobenzene has molecular formula C10H2N4 and molecular weight 178.150 g/mol.

Is 1,2,4,5-Tetracyanobenzene hazardous?

1,2,4,5-Tetracyanobenzene has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "1,2,4,5-Tetracyanobenzene (CAS 712-74-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1348-6 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.