1-Ethynyl-3-fluorobenzene
Also known as: 3-Fluorophenylacetylene, Benzene, 1-ethynyl-3-fluoro-, 1-ethynyl-3-fluoro-benzene, 3'-fluorophenyl acetylene, 3-FC6H4CCH, 3-fluorophenylacetylene 98%, MFCD03093798
1-Ethynyl-3-fluorobenzene (CAS 2561-17-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H5F and a molecular weight of 120.124 g/mol. Key properties include a boiling point of 148.7±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 26.2±15.7 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2561-17-3
- Jingsj CID
- J-1990476-8
- Molecular Formula
- C8H5F
- Molecular Weight
- 120.124 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 148.7±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 26.2±15.7 °C |
| Exact Mass | 120.037529 |
| LogP | 2.45 |
| Vapor Pressure | 5.3±0.3 mmHg at 25°C |
| Refractive Index | 1.516 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- 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 1-Ethynyl-3-fluorobenzene?
The CAS number of 1-Ethynyl-3-fluorobenzene is 2561-17-3.
What are the molecular formula and molecular weight of 1-Ethynyl-3-fluorobenzene?
1-Ethynyl-3-fluorobenzene has molecular formula C8H5F and molecular weight 120.124 g/mol.
Is 1-Ethynyl-3-fluorobenzene hazardous?
1-Ethynyl-3-fluorobenzene has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1-Ethynyl-3-fluorobenzene?
For 1-Ethynyl-3-fluorobenzene, Upstream Products: 1-[(Trimethylsilyl)ethynyl]-3-fluorobenzene, 1-(3-Fluorophenyl)ethanol, 3-Fluorostyrene; Downstream Products: 3-Fluorobenzoic acid, 1-(3-Fluorophenyl)ethanone, 3-Fluorostyrene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Ethynyl-3-fluorobenzene (CAS 2561-17-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990476-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.