1-ethynyl-3,5-difluorobenzene

1-乙炔基-3,5-二氟苯

Also known as: 3,5-Difluorophenylacetylene, 3,5-Difluorophenylethyne, 1-Ethynyl-3,5-fluorobenzene, Benzene, 1-ethynyl-3,5-difluoro-, [3,5-Difluorophenyl]ethyne, HCC(3,5-F2C6H3)

1-ethynyl-3,5-difluorobenzene (CAS 151361-87-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H4F2 and a molecular weight of 138.11400 g/mol. It is also known as 3,5-Difluorophenylacetylene, 3,5-Difluorophenylethyne and 1-Ethynyl-3,5-fluorobenzene. Key properties include a boiling point of 147.1ºC at 760mmHg, a density of 1.17g/cm3 and a flash point of 32ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
151361-87-4
Jingsj CID
J-24739-5
Molecular Formula
C8H4F2
Chinese Name
1-乙炔基-3,5-二氟苯
Molecular Weight
138.11400 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point147.1ºC at 760mmHg
Density1.17g/cm3
Flash Point32ºC

GHS Safety & Compliance

Flammable / IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 1-ethynyl-3,5-difluorobenzene?

The CAS number of 1-ethynyl-3,5-difluorobenzene is 151361-87-4.

What are the molecular formula and molecular weight of 1-ethynyl-3,5-difluorobenzene?

1-ethynyl-3,5-difluorobenzene has molecular formula C8H4F2 and molecular weight 138.11400 g/mol.

Is 1-ethynyl-3,5-difluorobenzene hazardous?

1-ethynyl-3,5-difluorobenzene 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. "1-ethynyl-3,5-difluorobenzene (CAS 151361-87-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-24739-5 (accessed 2026-10-22).

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