Phthalonitrile
Also known as: 1,2-Dicyanobenzene, Benzene-1,2-dicarbonitrile, o-Dicyanobenzene, o-Phthalodinitrile, 1,2-Benzenedicarbonitrile, o-Benzenedicarbonitrile
Phthalonitrile (CAS 91-15-6) 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 137-139 °C(lit.), a boiling point of 304.6±25.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 153.3±17.1 °C. It is classified under GHS with signal word Danger and hazard statements H300. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 91-15-6
- Jingsj CID
- J-45476-6
- 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 | 137-139 °C(lit.) |
|---|---|
| Boiling Point | 304.6±25.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 153.3±17.1 °C |
| Exact Mass | 128.037445 |
| PSA | 47.58000 |
| LogP | 1.07 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.566 |
| Stability | Stable. Incompatible with strong bases, strong acids, strong oxidizing agents, strong reducing agents. |
| Additional Property | 0.56 g/L (25 ºC) |
GHS Safety & Compliance
- H300
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 Phthalonitrile?
The CAS number of Phthalonitrile is 91-15-6.
What are the molecular formula and molecular weight of Phthalonitrile?
Phthalonitrile has molecular formula C8H4N2 and molecular weight 128.131 g/mol.
Is Phthalonitrile hazardous?
Phthalonitrile has GHS signal word Danger and hazard statements H300.
What are the upstream and downstream products of Phthalonitrile?
For Phthalonitrile, Upstream Products: 1-Chloroethyltrimethylsilane, 4-Hydroxyphthalonitrile, 3,6-dihydroxyphthalonitrile; Downstream Products: 4-Nitrophthalonitrile, 3-Nitrophthalonitrile, 2-Ethylbenzonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Phthalonitrile (CAS 91-15-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45476-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.