2,2-Difluoro-1,3-benzodioxole-5-carbaldehyde

2,2-二氟-1,3-苯并二恶茂-5-甲醛

Also known as: 1,3-Benzodioxole-5-carboxaldehyde, 2,2-difluoro-, 2,2-Difluoro-1,3-benzodioxole-5-carboxaldehyde, 2,2-Difluorobenzo[d][1,3]dioxole-5-carbaldehyde, 2,2-Difluoro-5-formyl-1,3-benzodioxole, 2,2-Difluoro-5-formylbenzodioxole, 2,2-difluoro-2H-1,3-benzodioxole-5-carbaldehyde, 5-Formyl-2,2-difluorobenzodioxole, MFCD00792420

2,2-Difluoro-1,3-benzodioxole-5-carbaldehyde (CAS 656-42-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H4F2O3 and a molecular weight of 186.112 g/mol. It is also known as 1,3-Benzodioxole-5-carboxaldehyde, 2,2-difluoro-, 2,2-Difluoro-1,3-benzodioxole-5-carboxaldehyde and 2,2-Difluorobenzo[d][1,3]dioxole-5-carbaldehyde. Key properties include a boiling point of 210.5±40.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 79.1±22.2 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
656-42-8
Jingsj CID
J-1992761-5
Molecular Formula
C8H4F2O3
Chinese Name
2,2-二氟-1,3-苯并二恶茂-5-甲醛
Molecular Weight
186.112 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point210.5±40.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point79.1±22.2 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2,2-Difluoro-1,3-benzodioxole-5-carbaldehyde?

The CAS number of 2,2-Difluoro-1,3-benzodioxole-5-carbaldehyde is 656-42-8.

What are the molecular formula and molecular weight of 2,2-Difluoro-1,3-benzodioxole-5-carbaldehyde?

2,2-Difluoro-1,3-benzodioxole-5-carbaldehyde has molecular formula C8H4F2O3 and molecular weight 186.112 g/mol.

Is 2,2-Difluoro-1,3-benzodioxole-5-carbaldehyde hazardous?

2,2-Difluoro-1,3-benzodioxole-5-carbaldehyde 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. "2,2-Difluoro-1,3-benzodioxole-5-carbaldehyde (CAS 656-42-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992761-5 (accessed 2026-10-22).

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