3,4-Difluorostyrene

3,4-二氟苯乙烯

Also known as: 1,2-Difluoro-4-vinylbenzene, 4-Ethenyl-1,2-difluorobenzene, Benzene, 4-ethenyl-1,2-difluoro-, 3,4-Difluorovinylbenzene, PC6276

3,4-Difluorostyrene (CAS 405-03-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H6F2 and a molecular weight of 140.13000 g/mol. It is also known as 1,2-Difluoro-4-vinylbenzene, 4-Ethenyl-1,2-difluorobenzene and Benzene, 4-ethenyl-1,2-difluoro-. Key properties include a boiling point of 146.5ºC at 760mmHg, a density of 1.131g/cm3 and a flash point of 31.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
405-03-8
Jingsj CID
J-1012664-0
Molecular Formula
C8H6F2
Chinese Name
3,4-二氟苯乙烯
Molecular Weight
140.13000 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point146.5ºC at 760mmHg
Density1.131g/cm3
Flash Point31.7ºC

Frequently Asked Questions

What is the CAS number of 3,4-Difluorostyrene?

The CAS number of 3,4-Difluorostyrene is 405-03-8.

What are the molecular formula and molecular weight of 3,4-Difluorostyrene?

3,4-Difluorostyrene has molecular formula C8H6F2 and molecular weight 140.13000 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4-Difluorostyrene (CAS 405-03-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1012664-0 (accessed 2026-10-22).

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