4-bromo-2-methylbenzene-1-sulfonyl chloride
Also known as: 4-Bromo-2-methylbenzenesulfonyl chloride, 4-Bromo-2-methylbenzenesulphonyl chloride, 2-Methyl-4-bromobenzenesulfonyl chloride, 5-Bromo-2-(chlorosulphonyl)toluene, Buttpark 98\57-56, Benzenesulfonyl chloride, 4-bromo-2-methyl-, MFCD00219927
4-bromo-2-methylbenzene-1-sulfonyl chloride (CAS 139937-37-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H6BrClO2S and a molecular weight of 269.543 g/mol. Key properties include a melting point of 65-67ºC, a boiling point of 307.0±30.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 139.4±24.6 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed and 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.
- 139937-37-4
- Jingsj CID
- J-1126683-4
- Molecular Formula
- C7H6BrClO2S
- Molecular Weight
- 269.543 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 65-67ºC |
|---|---|
| Boiling Point | 307.0±30.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 139.4±24.6 °C |
| Exact Mass | 267.896027 |
| PSA | 42.52000 |
| LogP | 3.48 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.580 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H314 — Causes severe skin burns and eye damage
Customs & Trade Information
| HS Code | 2904909090 |
|---|---|
| Summary | HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated 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-bromo-2-methylbenzene-1-sulfonyl chloride?
The CAS number of 4-bromo-2-methylbenzene-1-sulfonyl chloride is 139937-37-4.
What are the molecular formula and molecular weight of 4-bromo-2-methylbenzene-1-sulfonyl chloride?
4-bromo-2-methylbenzene-1-sulfonyl chloride has molecular formula C7H6BrClO2S and molecular weight 269.543 g/mol.
Is 4-bromo-2-methylbenzene-1-sulfonyl chloride hazardous?
4-bromo-2-methylbenzene-1-sulfonyl chloride has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 4-bromo-2-methylbenzene-1-sulfonyl chloride?
For 4-bromo-2-methylbenzene-1-sulfonyl chloride, Upstream Products: 3-Bromotoluene; Downstream Products: 4-Bromo-2-methylbenzenesulfonamide, 4-bromo-2-methyl-1-(methylsulfonyl)benzene.
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-bromo-2-methylbenzene-1-sulfonyl chloride (CAS 139937-37-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1126683-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.