Product name:Methanesulfonic anhydride
Purity:99%
Appearance:White crystalline solid
Sample:Available
Storage:Store at <= 20°C
CAS No.:
Methanesulfonic anhydride Cas 7143-01-3
Typical Properties
Chemical name:Methanesulfonic anhydride
Cas no:7143-01-3
Molecular weight:174.19
Molecular formula:C2H6O5S2
Molecular structure:
| Item | Specification |
| Melting point | 64-67 °C |
| Boiling point | 125 °C |
| Density | 1.36 g/cm3 |
| RI | 1.53 |
| Fp | 125°C |
Usage
Organic Synthesis (Sulfonylating Reagent): Used to prepare mesylates as an alternative to methanesulfonyl chloride; employed for the mesylation of alcohols and phenols and the activation of hydroxyl groups in intermediates; widely used in the synthesis of pharmaceutical intermediates.
Pharmaceutical Fine Chemicals: Used in the synthesis of sulfonamides and heterocyclic API intermediates; offers mild sulfonation conditions and minimal by-product formation, making it suitable for processes sensitive to chlorides.
Organocatalysis: Functions as a dehydrating agent, an acidic promoter, and an auxiliary for certain oxidation reactions.
Agrochemicals and New Materials: Used as an intermediate for sulfonyl-based pesticides and monomers for specialty polymers.
Packaging and Shipping
25kg/drum
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Methanesulfonic anhydride Cas 7143-01-3