4-Bromophenylacetylene
Also known as: 1-bromo-4-ethynylbenzene, 4-bromo-1-ethynylbenzene, 1-ethynyl-4-bromobenzene, Benzene, 1-bromo-4-ethynyl-, 4'-BROMOPHENYL ACETYLENE, 4-BROMOPHENYLACETYLENE, MFCD00168822
4-Bromophenylacetylene (CAS 766-96-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H5Br and a molecular weight of 181.03 g/mol. Key properties include a melting point of 64-67 °C(lit.), a boiling point of 199.2±23.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 77.9±17.0 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 766-96-1
- Jingsj CID
- J-1991285-7
- Molecular Formula
- C8H5Br
- Molecular Weight
- 181.03 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 64-67 °C(lit.) |
|---|---|
| Boiling Point | 199.2±23.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 77.9±17.0 °C |
| Exact Mass | 179.957458 |
| LogP | 3.17 |
| Vapor Pressure | 0.5±0.4 mmHg at 25°C |
| Refractive Index | 1.605 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H319 — Causes serious eye 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 4-Bromophenylacetylene?
The CAS number of 4-Bromophenylacetylene is 766-96-1.
What are the molecular formula and molecular weight of 4-Bromophenylacetylene?
4-Bromophenylacetylene has molecular formula C8H5Br and molecular weight 181.03 g/mol.
Is 4-Bromophenylacetylene hazardous?
4-Bromophenylacetylene has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 4-Bromophenylacetylene?
For 4-Bromophenylacetylene, Upstream Products: [(4-Bromophenyl)ethynyl](trimethyl)silane, Dimethyl (1-diazo-2-oxopropyl)phosphonate, 4-Bromobenzaldehyde; Downstream Products: 2-(4-Bromophenyl)imidazo[1,2-a]pyridine, (E)-1-Phenyl-2-(4-bromophenyl)ethene, 4-Bromostilbene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Bromophenylacetylene (CAS 766-96-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991285-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.