Methanesulfonyl bromide
Also known as: METHANESULFONYL BROMIDE, Mesyl bromide, Methanesulfonyl bromide (6CI,7CI,9CI), methylsulfonyl bromide, methanesulphonylbromide
Methanesulfonyl bromide (CAS 41138-92-5) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula CH3BrO2S and a molecular weight of 159.00200 g/mol. Key properties include a boiling point of 186.6ºC at 760 mmHg, a density of 1.954 g/mL at 20ºC(lit.) and a flash point of 66.7ºC. It is classified under GHS with signal word Danger and hazard statements H300, H330 — Fatal if inhaled 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.
- 41138-92-5
- Jingsj CID
- J-1332202-3
- Molecular Formula
- CH3BrO2S
- Molecular Weight
- 159.00200 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 186.6ºC at 760 mmHg |
|---|---|
| Density | 1.954 g/mL at 20ºC(lit.) |
| Flash Point | 66.7ºC |
| Exact Mass | 157.90400 |
| PSA | 42.52000 |
| LogP | 1.42170 |
| Refractive Index | n20/D 1.510 |
GHS Safety & Compliance
- H300
- H330 — Fatal if inhaled
- 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 Methanesulfonyl bromide?
The CAS number of Methanesulfonyl bromide is 41138-92-5.
What are the molecular formula and molecular weight of Methanesulfonyl bromide?
Methanesulfonyl bromide has molecular formula CH3BrO2S and molecular weight 159.00200 g/mol.
Is Methanesulfonyl bromide hazardous?
Methanesulfonyl bromide has GHS signal word Danger and hazard statements H300; H330 — Fatal if inhaled; 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. "Methanesulfonyl bromide (CAS 41138-92-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1332202-3 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.