4-Bromostyrene
Also known as: 1-bromo-4-ethenylbenzene, 1-bromo-4-vinylbenzene, p-Bromostyrene, 1-(4-Bromophenyl)ethylene, 4-vinylbromobenzene, Styrene, p-bromo-
4-Bromostyrene (CAS 2039-82-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H7Br and a molecular weight of 183.045 g/mol. Key properties include a melting point of 4.5 °C, a boiling point of 214.3±9.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 75.6±0.0 °C. It is classified under GHS with signal word Warning and hazard statements 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.
- 2039-82-9
- Jingsj CID
- J-1503487-4
- Molecular Formula
- C8H7Br
- Molecular Weight
- 183.045 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 4.5 °C |
|---|---|
| Boiling Point | 214.3±9.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 75.6±0.0 °C |
| Exact Mass | 181.973099 |
| LogP | 3.59 |
| Vapor Pressure | 0.2±0.4 mmHg at 25°C |
| Refractive Index | 1.598 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- 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-Bromostyrene?
The CAS number of 4-Bromostyrene is 2039-82-9.
What are the molecular formula and molecular weight of 4-Bromostyrene?
4-Bromostyrene has molecular formula C8H7Br and molecular weight 183.045 g/mol.
Is 4-Bromostyrene hazardous?
4-Bromostyrene has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 4-Bromostyrene?
For 4-Bromostyrene, Upstream Products: 4-Vinylphenylboronic acid, 2-(4-bromophenyl)oxirane, 4-Bromobenzaldehyde; Downstream Products: 4-Vinylbenzaldehyde, 4-Ethylbenzaldehyde, 2-(4-bromophenyl)oxirane.
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-Bromostyrene (CAS 2039-82-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503487-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.