1-Ethynyl-2-fluorobenzene
Also known as: 2-Fluorophenylacetylene, Benzene, 1-ethynyl-2-fluoro-, MFCD00799540, 1-Ethynyl-2-fluorobenzene, 2'-Fluorophenylacetylene
1-Ethynyl-2-fluorobenzene (CAS 766-49-4) 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 149.3±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 26.3±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.
- 766-49-4
- Jingsj CID
- J-16286-7
- 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 | 149.3±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 26.3±15.7 °C |
| Exact Mass | 120.037529 |
| LogP | 2.45 |
| Vapor Pressure | 5.1±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-2-fluorobenzene?
The CAS number of 1-Ethynyl-2-fluorobenzene is 766-49-4.
What are the molecular formula and molecular weight of 1-Ethynyl-2-fluorobenzene?
1-Ethynyl-2-fluorobenzene has molecular formula C8H5F and molecular weight 120.124 g/mol.
Is 1-Ethynyl-2-fluorobenzene hazardous?
1-Ethynyl-2-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-2-fluorobenzene?
For 1-Ethynyl-2-fluorobenzene, Upstream Products: 2-Fluorostyrene, 1-(2-Fluorophenyl)ethanol, 2-Fluorobenzaldehyde; Downstream Products: 2-(2-Fluorophenyl)ethanol, 2-(2-Fluorophenyl)acetaldehyde, 1-(2-Fluorophenyl)ethanol.
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-2-fluorobenzene (CAS 766-49-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-16286-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.