Methanesulfonic anhydride, 97%

Description

CAS: 7143-01-3 | C2H6O5S2 | 174.19 g/mol

Methanesulfonic anhydride is used to prepare methylsulfonyl esters called as mesylates. It finds application in the reaction of aromatic alkylation. It reacts with dimethylsulfoxide to get sulfoxonium complex, which is a useful oxidizing agent.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Methanesulfonic anhydride is used to prepare methylsulfonyl esters called as mesylates. It finds application in the reaction of aromatic alkylation. It reacts with dimethylsulfoxide to get sulfoxonium complex, which is a useful oxidizing agent.

Solubility
Soluble in organic solvents.

Notes
Moisture sensitive. Hygroscopic. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 7143-01-3
• Molecular Formula: C2H6O5S2
• Molecular Weight (g/mol): 174.19
• MDL Number: MFCD00007556
• InChI Key: IZDROVVXIHRYMH-UHFFFAOYSA-N
• Synonym: methanesulfonic anhydride, methanesulfonic acid, anhydride, mesyl anhydride, mesic anhydride, methanesulphonic anhydride, methane sulfonic acid anhydride, methanesulfonyl methanesulfonate, methane sulfonic anhydride, methanesulfonic acid, 1,1'-anhydride, methanesulfonic acid methylsulfonyl ester
• PubChem CID: 81560
• IUPAC Name: methylsulfonyl methanesulfonate
• SMILES: CS(=O)(=O)OS(=O)(=O)C

• Melting Point: 65°C to 69°C
• Boiling Point: 125°C (4 mmHg)
• Quantity: 250 g
• UN Number: UN3261
• Beilstein: 972316
• Sensitivity: Moisture sensitive
• Solubility Information: Soluble in organic solvents.
• Formula Weight: 174.2
• Percent Purity: 98%
• Chemical Name or Material: Methanesulfonic anhydride

Safety and Handling

Hazard Category	H314
Hazard Statement	GHS H Statement H314-H318 Causes severe skin burns and eye damage. Causes serious eye damage.
Precautionary Statement	P260-P264b-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P501c
DOTInformation	Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.
EINECSNumber	230-442-1
TSCA	Yes
Recommended Storage	Ambient temperatures; Store under Nitrogen

SDS

RUO – Research Use Only