Isophthalonitrile
Also known as: 1,3-Dicyanobenzene, 1,3-Benzenedicarbonitrile, m-Phthalodinitrile, m-Dicyanobenzene, Benzene-1,3-dicarbonitrile, IPN, DCB
Isophthalonitrile (CAS 626-17-5) 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 163-165 °C(lit.), a boiling point of 239.0±13.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 106.4±13.7 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 626-17-5
- Jingsj CID
- J-6480-8
- 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 | 163-165 °C(lit.) |
|---|---|
| Boiling Point | 239.0±13.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 106.4±13.7 °C |
| Exact Mass | 128.037445 |
| PSA | 47.58000 |
| LogP | 0.82 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.566 |
| Additional Property | 0.7 g/L (20 ºC) |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H332 — Harmful if inhaled
Customs & Trade Information
| HS Code | 2926902001 |
|---|---|
| Summary | HS: 2926902001. isophthalonitrile. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tarrif:6.5%. general tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Isophthalonitrile?
The CAS number of Isophthalonitrile is 626-17-5.
What are the molecular formula and molecular weight of Isophthalonitrile?
Isophthalonitrile has molecular formula C8H4N2 and molecular weight 128.131 g/mol.
Is Isophthalonitrile hazardous?
Isophthalonitrile has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H332 — Harmful if inhaled.
What are the upstream and downstream products of Isophthalonitrile?
For Isophthalonitrile, Upstream Products: m-Xylylenediamine, m-Xylene, 3-Bromobenzonitrile; Downstream Products: 9,10-Dihydrophenanthrene, 1,3-Bis(4,5-dihydro-2-oxazolyl)benzene, perfluorocyclohexane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Isophthalonitrile (CAS 626-17-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6480-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.