2,4-Difluorobenzonitrile

2,4-二氟苯腈

Also known as: 2,4-Difluorobenzenecarbonitrile, 1-cyano-2,4-difluorobenzene, 1,3-Difluor-4-cyanobenzol, Benzonitrile, 2,4-difluoro-, 2,4-Difluoro benzonitrile, 2,4-Difluorobenzonitril, 2,4-difluoro-benzonitrile, NCR BF DF, MFCD00009826

2,4-Difluorobenzonitrile (CAS 3939-09-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H3F2N and a molecular weight of 139.102 g/mol. It is also known as 2,4-Difluorobenzenecarbonitrile, 1-cyano-2,4-difluorobenzene and 1,3-Difluor-4-cyanobenzol. Key properties include a melting point of 47-49 °C(lit.), a boiling point of 181.6±20.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 63.6±21.8 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3939-09-1
Jingsj CID
J-1385851-1
Molecular Formula
C7H3F2N
Chinese Name
2,4-二氟苯腈
Molecular Weight
139.102 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point47-49 °C(lit.)
Boiling Point181.6±20.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point63.6±21.8 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,4-Difluorobenzonitrile?

The CAS number of 2,4-Difluorobenzonitrile is 3939-09-1.

What are the molecular formula and molecular weight of 2,4-Difluorobenzonitrile?

2,4-Difluorobenzonitrile has molecular formula C7H3F2N and molecular weight 139.102 g/mol.

Is 2,4-Difluorobenzonitrile hazardous?

2,4-Difluorobenzonitrile has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,4-Difluorobenzonitrile (CAS 3939-09-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1385851-1 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.