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Alfa Aesar™ Methanesulfonic anhydride, 98%

Chemical Identifiers

Chemical Name or Material Methanesulfonic anhydride
CAS 7143-01-3
Molecular Formula C2H6O5S2
Formula Weight 174.2
MDL Number MFCD00007556
UN Number UN3261
Beilstein 972316
Synonym Mesic anhydride
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA1332809

  SDS
alfa aesar™
A1332809
10g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.

AAA1332814

  SDS
alfa aesar™
A1332814
25g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.

AAA1332830

  SDS
alfa aesar™
A1332830
250g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Description & Specifications

Specifications

Formula Weight 174.2
Melting Point 65° to 69°C
Synonym Mesic anhydride
Assay 98%
Boiling Point 125°C (4mmHg)
UN Number UN3261
Chemical Name or Material Methanesulfonic anhydride
MDL Number MFCD00007556
Health Hazard 3 GHS P Statement
P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
Do not breathe dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
Quantity 10g
TSCA TSCA
Molecular Formula C2H6O5S2
Health Hazard 2 GHS H Statement
H314-H318
Causes severe skin burns and eye damage.
Causes serious eye damage.
Beilstein 972316
Health Hazard 1 Danger
DOT Information Transport Hazard Class: 8; Packing Group: II; Proper Shipping Name: CORROSIVE SOLID, ACIDIC, ORGANIC, N.O.S.
CAS 7143-01-3

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.

Safety and Handling

Danger

GHS P Statement
P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a
Do not breathe dust/fume/gas/mist/vapors/spray.
IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H314-H318
Causes severe skin burns and eye damage.
Causes serious eye damage.