2-Ethynyl-1-fluoro-4-nitrobenzene

2-乙炔基-1-氟-4-硝基苯

Also known as: 2-ethynyl-1-fluoro-4-nitro-benzene, 2-fluoro-5-nitrophenylacetylene, Benzene, 2-ethynyl-1-fluoro-4-nitro-

2-Ethynyl-1-fluoro-4-nitrobenzene (CAS 343866-99-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H4FNO2 and a molecular weight of 165.12100 g/mol. It is also known as 2-ethynyl-1-fluoro-4-nitro-benzene, 2-fluoro-5-nitrophenylacetylene and Benzene, 2-ethynyl-1-fluoro-4-nitro-. Key properties include a boiling point of 242.766ºC at 760 mmHg, a density of 1.326g/cm3 and a flash point of 100.622ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
343866-99-9
Jingsj CID
J-917832-0
Molecular Formula
C8H4FNO2
Chinese Name
2-乙炔基-1-氟-4-硝基苯
Molecular Weight
165.12100 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point242.766ºC at 760 mmHg
Density1.326g/cm3
Flash Point100.622ºC

Frequently Asked Questions

What is the CAS number of 2-Ethynyl-1-fluoro-4-nitrobenzene?

The CAS number of 2-Ethynyl-1-fluoro-4-nitrobenzene is 343866-99-9.

What are the molecular formula and molecular weight of 2-Ethynyl-1-fluoro-4-nitrobenzene?

2-Ethynyl-1-fluoro-4-nitrobenzene has molecular formula C8H4FNO2 and molecular weight 165.12100 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Ethynyl-1-fluoro-4-nitrobenzene (CAS 343866-99-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-917832-0 (accessed 2026-10-23).

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