Benzene, 1-ethynyl-2,4-difluoro-
Also known as: 1-ethynyl-2,4-difluorobenzene, 2,4-difluorophenylacetylene, 2,4-difluoroethynylbenzene, 2,4-difluorophenylethyne, MFCD02093726
Benzene, 1-ethynyl-2,4-difluoro- (CAS 302912-34-1) 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. Key properties include a melting point of 29-32ºC(lit.), a boiling point of 134.7ºC at 760 mmHg, a density of 1.17g/cm3 and a flash point of 33.3 °C. It is classified under GHS with signal word Warning and hazard statements H228, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 302912-34-1
- Jingsj CID
- J-1055726-3
- Molecular Formula
- C8H4F2
- Molecular Weight
- 138.11400 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 29-32ºC(lit.) |
|---|---|
| Boiling Point | 134.7ºC at 760 mmHg |
| Density | 1.17g/cm3 |
| Flash Point | 33.3 °C |
| Exact Mass | 138.02800 |
| LogP | 1.94610 |
| Refractive Index | 1.492 |
GHS Safety & Compliance
- H228
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2903999090 |
|---|---|
| Summary | 2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Benzene, 1-ethynyl-2,4-difluoro-?
The CAS number of Benzene, 1-ethynyl-2,4-difluoro- is 302912-34-1.
What are the molecular formula and molecular weight of Benzene, 1-ethynyl-2,4-difluoro-?
Benzene, 1-ethynyl-2,4-difluoro- has molecular formula C8H4F2 and molecular weight 138.11400 g/mol.
Is Benzene, 1-ethynyl-2,4-difluoro- hazardous?
Benzene, 1-ethynyl-2,4-difluoro- has GHS signal word Warning and hazard statements H228; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Benzene, 1-ethynyl-2,4-difluoro-?
For Benzene, 1-ethynyl-2,4-difluoro-, Downstream Products: N-(2,4-Difluorophenyl)acetamide, (2,4-difluorophenylethynyl)trimethylsilane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Benzene, 1-ethynyl-2,4-difluoro- (CAS 302912-34-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1055726-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.