4-Methylbenzyl bromide
Also known as: 1-(Bromomethyl)-4-methylbenzene, 4-(Bromomethyl)toluene, alpha-Bromo-p-xylene, p-Xylyl bromide, p-Methylbenzyl bromide, omega-Bromo-p-xylene, Benzene, 1-(bromomethyl)-4-methyl-, α-Bromo-p-xylene, α-Bromo-p-xylol
4-Methylbenzyl bromide (CAS 104-81-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C8H9Br and a molecular weight of 185.061 g/mol. Key properties include a melting point of 34-36 °C(lit.), a boiling point of 225.0±0.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 97.8±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 104-81-4
- Jingsj CID
- J-1394424-6
- Molecular Formula
- C8H9Br
- Molecular Weight
- 185.061 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 34-36 °C(lit.) |
|---|---|
| Boiling Point | 225.0±0.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 97.8±0.0 °C |
| Exact Mass | 183.988754 |
| LogP | 3.38 |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.560 |
| Additional Property | practically insoluble |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
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-Methylbenzyl bromide?
The CAS number of 4-Methylbenzyl bromide is 104-81-4.
What are the molecular formula and molecular weight of 4-Methylbenzyl bromide?
4-Methylbenzyl bromide has molecular formula C8H9Br and molecular weight 185.061 g/mol.
Is 4-Methylbenzyl bromide hazardous?
4-Methylbenzyl bromide has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.
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-Methylbenzyl bromide (CAS 104-81-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1394424-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.