Methanesulfonic anhydride - ≥98% , CAS No.7143-01-3

CAS: 7143-01-3 Cat. No.: M100809 Molecular Weight: 174.2 Beilstein Registry Number: 972316 EC Number: 230-442-1
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
A837175 | F0001-1835 | Mesyl anhydride | EN300-25979 | Methanesulphonic acid anhydride | UNII-J492U7J4PB | MFCD00052338 | methanesulfonic acid anhydride | methane-sulfonic acid anhydride | methylsulfonic acid anhydride | C2H6O5S2 | Mesic anhydride | Metha
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
M100809-5g
1
$9.90
25g
M100809-25g
1
$11.90
50g
M100809-50g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$19.90

$29.90
Save $10.00 (33.44%)
100g
M100809-100g
2

$36.90

$49.90
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250g
M100809-250g
1

$80.90

$109.90
Save $29.00 (26.39%)
500g
M100809-500g
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$124.90

$169.90
Save $45.00 (26.49%)
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Methanesulfonic anhydride is the acid anhydride of methanesulfonic acid. Like methanesulfonyl chloride, it may be used to generate mesylates (methanesulfonyl esters).
May be used to generate mesylates (methanesulfonyl esters).

Specifications

Synonyms
A837175 | F0001-1835 | Mesyl anhydride | EN300-25979 | Methanesulphonic acid anhydride | UNII-J492U7J4PB | MFCD00052338 | methanesulfonic acid anhydride | methane-sulfonic acid anhydride | methylsulfonic acid anhydride | C2H6O5S2 | Mesic anhydride | Metha
Specifications & Purity
≥98%
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Canonical SmilesCS(=O)(=O)OS(=O)(=O)C
IUPAC Namemethylsulfonyl methanesulfonate
InChIKeyIZDROVVXIHRYMH-UHFFFAOYSA-N
INCHI1S/C2H6O5S2/c1-8(3,4)7-9(2,5)6/h1-2H3
Isomeric SMILES CS(=O)(=O)OS(=O)(=O)C
WGK Germany 3
UN Number 3261
Molecular Weight 174.2
Beilstein 972316
Reaxy-Rn 972316
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=972316&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassOrganic sulfonic acids and derivatives
SubclassOrganosulfonic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentOrganosulfonic anhydrides
Alternative Parents Sulfonyls  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Organosulfonic anhydride - Sulfonyl - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as organosulfonic anhydrides. These are organic compounds having the structure RS(=O)2OS(=O)2R', where R = organyl group and R' = H or organyl group.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

39 results found

Lot NumberCertificate TypeDateItem
I2511023Certificate of AnalysisJun 15, 2026 M100809
K2415436Certificate of AnalysisMay 11, 2026 M100809
K2415437Certificate of AnalysisMay 11, 2026 M100809
H2304136Certificate of AnalysisJan 21, 2026 M100809
L2215800Certificate of AnalysisJan 19, 2026 M100809
L2215799Certificate of AnalysisJan 19, 2026 M100809
L2215606Certificate of AnalysisJan 19, 2026 M100809
L2526194Certificate of AnalysisDec 10, 2025 M100809
L2526183Certificate of AnalysisDec 10, 2025 M100809
D2627058Certificate of AnalysisDec 10, 2025 M100809
L2526153Certificate of AnalysisDec 10, 2025 M100809
F2605192Certificate of AnalysisDec 10, 2025 M100809
G2322021Certificate of AnalysisOct 29, 2025 M100809
H2304121Certificate of AnalysisOct 29, 2025 M100809
H2304134Certificate of AnalysisOct 29, 2025 M100809
H2304124Certificate of AnalysisOct 29, 2025 M100809
K2415443Certificate of AnalysisAug 12, 2025 M100809
K2415434Certificate of AnalysisAug 12, 2025 M100809
K2415435Certificate of AnalysisAug 12, 2025 M100809
K2507051Certificate of AnalysisFeb 15, 2025 M100809
C2513416Certificate of AnalysisFeb 15, 2025 M100809
L2510056Certificate of AnalysisFeb 15, 2025 M100809
A2623066Certificate of AnalysisFeb 15, 2025 M100809
C2513417Certificate of AnalysisFeb 15, 2025 M100809
K2415438Certificate of AnalysisNov 06, 2024 M100809
H2405019Certificate of AnalysisJun 12, 2024 M100809
H2304123Certificate of AnalysisMay 07, 2024 M100809
G2409047Certificate of AnalysisMay 07, 2024 M100809
L2215608Certificate of AnalysisSep 21, 2023 M100809
L2115357Certificate of AnalysisJun 12, 2023 M100809
L2215607Certificate of AnalysisNov 16, 2022 M100809
L2215798Certificate of AnalysisNov 16, 2022 M100809
J2215148Certificate of AnalysisOct 20, 2022 M100809
L2115359Certificate of AnalysisSep 13, 2022 M100809
H2102071Certificate of AnalysisMay 07, 2022 M100809
F2121255Certificate of AnalysisApr 26, 2022 M100809
F2121218Certificate of AnalysisApr 26, 2022 M100809
F2121216Certificate of AnalysisApr 26, 2022 M100809
I2208384Certificate of AnalysisNov 16, 2021 M100809

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Chemical and Physical Properties
SolubilityMay be used to generate mesylates (methanesulfonyl esters).
SensitivityHygroscopic
Boil Point(°C)125°C
Melt Point(°C)69-70°C
Molecular Weight174.200 g/mol
XLogP3-0.800
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count2
Exact Mass173.966 Da
Monoisotopic Mass173.966 Da
Topological Polar Surface Area94.300 Ų
Heavy Atom Count9
Formal Charge0
Complexity227.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Shuang Liu, Jing Yan, Junqin Shi, Xuezhuang Li, Junping Zhang, Xuanyi Wang, Ningjing Cai, Quanhai Fang, Qiuyu Zhang, Yi Yan.  (2022)  Rational design of cobaltocenium-containing polythioether type metallo-polyelectrolytes as HCl corrosion inhibitors for mild steel.  Polymer Chemistry,  14  (3): (330-342).  [PMID:] [10.1039/D2PY01263D]
Solution Calculators
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