Terephthalonitrile
Also known as: 1,4-Benzenedicarbonitrile, 1,4-Dicyanobenzene, benzene-1,4-dicarbonitrile, p-dicyanobenzene, Terephthaloyl nitrile, 1,4-Benzendikarbonitril, 1,4-Dycyanobenzene
Terephthalonitrile (CAS 623-26-7) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H4N2 and a molecular weight of 128.131 g/mol. Key properties include a melting point of 221-225 °C(lit.), a boiling point of 289.6±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 142.8±16.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 623-26-7
- Jingsj CID
- J-38884-1
- Molecular Formula
- C8H4N2
- Molecular Weight
- 128.131 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 221-225 °C(lit.) |
|---|---|
| Boiling Point | 289.6±23.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 142.8±16.5 °C |
| Exact Mass | 128.037445 |
| PSA | 47.58000 |
| LogP | 0.97 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.566 |
| Additional Property | 0.08 g/L (23 ºC) |
Customs & Trade Information
| HS Code | 2926909090 |
|---|---|
| Summary | HS: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 Terephthalonitrile?
The CAS number of Terephthalonitrile is 623-26-7.
What are the molecular formula and molecular weight of Terephthalonitrile?
Terephthalonitrile has molecular formula C8H4N2 and molecular weight 128.131 g/mol.
What are the upstream and downstream products of Terephthalonitrile?
For Terephthalonitrile, Upstream Products: p-Xylene, 4-Cyanobenzaldehyde, 1,4-Benzenedimethanol; Downstream Products: 4,4'-Biphenyldicarbonitrile, Butylbenzene, 4'-Butyl-4-biphenylcarbonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Terephthalonitrile (CAS 623-26-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38884-1 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.