Malononitrile
Also known as: Dicyanomethane, Methylene cyanide, Methylene dicyanide, Propanedinitrile, Malonic acid dinitrile, Malonodinitrile, MDN
Malononitrile (CAS 109-77-3) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H2N2 and a molecular weight of 66.061 g/mol. Key properties include a melting point of 30-32 °C(lit.), a boiling point of 218.5±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 112.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 109-77-3
- Jingsj CID
- J-44819-6
- Molecular Formula
- C3H2N2
- Molecular Weight
- 66.061 g/mol
- Category
- Nitrogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 30-32 °C(lit.) |
|---|---|
| Boiling Point | 218.5±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 112.2±0.0 °C |
| Exact Mass | 66.021797 |
| PSA | 47.58000 |
| LogP | -0.50 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.402 |
| Additional Property | 13.3 g/100 mL (20 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H410 — Very toxic to aquatic life with long lasting effects
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 Malononitrile?
The CAS number of Malononitrile is 109-77-3.
What are the molecular formula and molecular weight of Malononitrile?
Malononitrile has molecular formula C3H2N2 and molecular weight 66.061 g/mol.
Is Malononitrile hazardous?
Malononitrile has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.
What are the upstream and downstream products of Malononitrile?
For Malononitrile, Upstream Products: 2-Cyanoacetamide, Cyanuric chloride, Bromomalononitrile; Downstream Products: Propanedinitrile, 2-[3-(5-amino-4-cyano-2-furanyl)-2-propen-1-ylidene]-, 5-acetyl-2-amino-4-(2-furanyl)-6-methyl-4H-pyran-3-carbonitrile.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Malononitrile (CAS 109-77-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44819-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.