Methanesulfonic anhydride
甲基磺酸酐
Also known as: Mesyl anhydride, Methanesulfonic acid anhydride, Methanesulfonic acid, anhydride, Methanesulfonyl anhydride, Methylsulfonic anhydride, Mesic anhydride, Methanesulphonic anhydride, Methylsulfonyl methanesulfonate, NSC 65906
- CAS No.
- 7143-01-3
- Jingsj CID
- J-923555-9
- Molecular Formula
- C2H6O5S2
- Chinese Name
- 甲基磺酸酐
- Molecular Weight
- 174.196 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
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Request a quotePhysicochemical Properties
| Melting Point | 64-67 °C(lit.) |
|---|---|
| Boiling Point | 289.3±9.0 °C at 760 mmHg |
| Density | 1.6±0.1 g/cm3 |
| Flash Point | 128.7±18.7 °C |
GHS Safety & Compliance
CorrosionSignal word: Danger
Frequently Asked Questions
What is the CAS number of Methanesulfonic anhydride?
7143-01-3
What are the molecular formula and molecular weight of Methanesulfonic anhydride?
C2H6O5S2, molecular weight 174.196 g/mol
Is Methanesulfonic anhydride hazardous?
Danger
Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026