Chloromethanesulfonyl chloride
Also known as: Chloromethylsulfonyl chloride, Chloromesyl chloride, Methanesulfonyl chloride, chloro-, Methanesulfonyl chloride, 1-chloro-, CMSC, Chlormethansulfonylchlorid, Chlormethansulfochlorid, Chloromethanesulphonyl chloride, Chloromethylsulphonyl chloride, Monochlate chloride, chloromethanesulfonyl chloride
Chloromethanesulfonyl chloride (CAS 3518-65-8) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula CH2Cl2O2S and a molecular weight of 148.996 g/mol. Key properties include a boiling point of 197.8±23.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 73.4±22.6 °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.
- 3518-65-8
- Jingsj CID
- J-31188-1
- Molecular Formula
- CH2Cl2O2S
- Molecular Weight
- 148.996 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 197.8±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 73.4±22.6 °C |
| Exact Mass | 147.915253 |
| PSA | 42.52000 |
| LogP | 0.47 |
| Vapor Pressure | 0.5±0.4 mmHg at 25°C |
| Refractive Index | 1.478 |
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 Chloromethanesulfonyl chloride?
The CAS number of Chloromethanesulfonyl chloride is 3518-65-8.
What are the molecular formula and molecular weight of Chloromethanesulfonyl chloride?
Chloromethanesulfonyl chloride has molecular formula CH2Cl2O2S and molecular weight 148.996 g/mol.
Is Chloromethanesulfonyl chloride hazardous?
Chloromethanesulfonyl 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 Chloromethanesulfonyl chloride?
For Chloromethanesulfonyl chloride, Upstream Products: Formaldehyde, 1,3,5-Trithiane, Water; Downstream Products: Carbon tetrafluoride, Chlorofluoromethane, Chlorotrifluoromethane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Chloromethanesulfonyl chloride (CAS 3518-65-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31188-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.