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Methanesulfonic anhydride, 98% - CAS 7143-01-3 - Formula C2H6O5S2

A13328 7143-01-3 Methanesulfonic anhydride, 98% Mesic anhydride Alfa Aesar


Certificate of Analysis

Methanesulfonic anhydride, 98%

CAS: 7143-01-3 MDL: MFCD00007556  EINECS: 230-442-1
UN#:UN3261Hazard Class:8Packing Group:II
Alternate Name: Mesic anhydride


Pricing and Availability

Size ($) Price Your Price Quantity Options Availability
10g 25.30 Check Availability Add to Favorites Enter qty and click checkbox
25g 60.80 Check Availability Add to Favorites Enter qty and click checkbox
50g 109.00 Check Availability Add to Favorites Enter qty and click checkbox
250g 502.00 Check Availability Add to Favorites Enter qty and click checkbox

Chemical Properties

Formula: C2H6O5S2  Boiling point: 125°/4mm
Formula weight: 174.20  Sensitivity: Moisture Sensitive
Melting point: 65-69° 

Literature References

More powerful sulfonylating reagent than the sulfonyl chloride, also avoiding possible displacement of sulfonate by halide. With a catalytic amount of the acid effects mesylation of deactivated aromatics such as 1,3-dichlorobenzene: Chem. Lett., 395 (1988); mesyl chloride is ineffective.

Primary and secondary alcohols may be oxidized to carbonyl compounds by sulfonic anhydrides in DMSO: J. Org. Chem., 39, 1977 (1974). For related methods, see Dimethyl­ sulfoxide, A13280.

Other References

Beilstein: 972316
UN#: UN3261
Harmonized Tariff Code: 2904.10

GHS Hazard and Precautionary Statements

Hazard Statements : H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

Precautionary Statements : P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501A

Do not breathe dust/fume/gas/mist/vapours/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.


Risk & Safety

Risk Phrases: 14-34
Reacts violently with water. Causes burns.
Safety Phrases: 26-36/37/39-45
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).