Fumaronitrile
Also known as: trans-1,2-Dicyanoethylene, (E)-1,2-Dicyanoethylene, 2-Butenedinitrile, (2E)-, (2E)-2-Butenedinitrile, (E)-But-2-enedinitrile, But-2-enedinitrile, Fumaric dinitrile, Fumaric nitrile, Fumarodinitrile, Furmaronitrile, trans-but-2-enedinitrile, trans-2-Butenedinitrile, trans-Dicyanoethylene
Fumaronitrile (CAS 764-42-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C4H2N2 and a molecular weight of 78.072 g/mol. Key properties include a melting point of 93-95 °C(lit.), a boiling point of 187.3±13.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 82.6±13.7 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H301 — Toxic if swallowed and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 764-42-1
- Jingsj CID
- J-30127-3
- Molecular Formula
- C4H2N2
- Molecular Weight
- 78.072 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 93-95 °C(lit.) |
|---|---|
| Boiling Point | 187.3±13.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 82.6±13.7 °C |
| Exact Mass | 78.021797 |
| PSA | 47.58000 |
| LogP | -0.19 |
| Vapor Pressure | 0.6±0.4 mmHg at 25°C |
| Refractive Index | 1.458 |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H301 — Toxic if swallowed
- H331 — Toxic if inhaled
- H331 — Toxic if inhaled
Frequently Asked Questions
What is the CAS number of Fumaronitrile?
The CAS number of Fumaronitrile is 764-42-1.
What are the molecular formula and molecular weight of Fumaronitrile?
Fumaronitrile has molecular formula C4H2N2 and molecular weight 78.072 g/mol.
Is Fumaronitrile hazardous?
Fumaronitrile has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H301 — Toxic if swallowed; H331 — Toxic if inhaled.
What are the upstream and downstream products of Fumaronitrile?
For Fumaronitrile, Upstream Products: Fumaramide, Acrylonitrile, (Triphenylphosphoranylidene)acetonitrile; Downstream Products: trans-3-(Dimethylamino)acrylonitrile, 6-Nitro-2,3-naphthalenedicarbonitrile, Chlorosuccinic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Fumaronitrile (CAS 764-42-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30127-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.