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Methanesulfonic Anhydride

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MOQ : 50 Kilograms

Methanesulfonic Anhydride Specification

CAS No
1993-05-5

Smell
Pungent, acrid odor

Structural Formula
(CH3SO2)2O

Purity
99%

Grade
Analytical / Laboratory

Density
1.54 Gram per cubic centimeter(g/cm3)

Ph Level
Acidic

Physical Form
Liquid or crystalline solid

Shelf Life
12-24 months under recommended storage conditions

Ingredients
Methanesulfonic acid anhydride

Properties
Strong sulfonating and dehydrating agent, highly reactive, moisture sensitive

Melting Point
30-33C

Usage
Chemical synthesis, intermediate for active pharmaceutical ingredients

Product Type
Organic Chemical Intermediate

Storage
Store in a tightly closed container, in a cool, dry, well-ventilated area, keep away from moisture

EINECS No
217-747-9

Molecular Formula
C2H6O4S2

Poisonous
Corrosive, harmful if inhaled or ingested

Appearance
Colorless to pale yellow liquid or crystalline solid

Solubility
Hydrolyzes in water, soluble in polar aprotic solvents

Shape
Irregular/Clear

Molecular Weight
158.20 g/mol

Application
Used in sulfonation reactions, pharmaceuticals, and fine chemicals

HS Code
29420090

Autoignition Temperature
Not determined

Vapor Pressure
Negligible at 20C

Hazard Class
Corrosive, classified under GHS as Skin Corr. 1B

Transport Information
UN 3265, Class 8, PG II

Handling Precautions
Use with adequate ventilation, wear protective gloves and eyewear

Flash Point
>110C

Boiling Point
252C (decomposes)

Stability
Stable under recommended conditions, sensitive to moisture

Incompatibility
Avoid contact with water, alcohols, bases, and oxidizing agents

Packaging
Available in sealed bottles or drums of various capacities

Methanesulfonic Anhydride Trade Information

Minimum Order Quantity
50 Kilograms

Supply Ability
1 Kilograms Per Week

Delivery Time
1 Week

About Methanesulfonic Anhydride

Methanesulfonic Anhydride

Synonym : Methane Sulphonic Anhydride

Case no.: [7143-01-3]

Mol. formula : (CH3SO2)2O

Molecular weight : 174.19

Appearance : White to off White Solid

% Assay : 98 min

% Water Content (By K.F): 2 max

Strong Sulfonating Agent for Diverse Applications

Methanesulfonic anhydride acts as a potent sulfonating and dehydrating agent in the synthesis of pharmaceuticals, fine chemicals, and advanced intermediates. Its high purity (99%) and analytical grade make it suitable for precise laboratory and industrial processes, enhancing reaction efficiency and selectivity.

Safe Handling and Storage Guidelines

Due to its corrosive and moisture-sensitive nature, Methanesulfonic anhydride should always be stored in tightly sealed containers in cool, dry, and well-ventilated locations. Use protective gloves, eyewear, and ensure good ventilation during handling to minimize health risks and maintain chemical integrity throughout its shelf life.

FAQs of Methanesulfonic Anhydride:

Q: How should Methanesulfonic anhydride be safely handled during use?

A: Methanesulfonic anhydride requires handling in well-ventilated areas with appropriate protective gloves and eyewear. Avoid direct contact with skin and eyes, and prevent inhalation of vapors. Always work away from sources of moisture and incompatible substances such as water, alcohols, bases, and oxidizing agents.

Q: What is the recommended storage process for Methanesulfonic anhydride to ensure stability?

A: Store the product in tightly closed bottles or drums, placed in a cool, dry, and well-ventilated space. Keeping it away from moisture and direct sunlight prevents hydrolysis and preserves its quality within the recommended shelf life of 1224 months.

Q: When is Methanesulfonic anhydride most beneficial in chemical synthesis?

A: Its benefits are most significant when used as a sulfonating and dehydrating agent in synthesizing pharmaceuticals, intermediates, and certain fine chemicals, where high purity and reactivity improve yield and process efficiency.

Q: Where is Methanesulfonic anhydride commonly applied in industry?

A: It is commonly used in laboratories, pharmaceutical production, and chemical manufacturing processes that require selective sulfonation or dehydration reactions. Its strong reactivity and purity make it ideal for both research and industrial applications.

Q: What precautions should be taken to minimize risks when using Methanesulfonic anhydride?

A: Always operate with proper ventilation, utilize corrosion-resistant equipment, wear suitable protective clothing, and ensure that all handling occurs away from sources of moisture or incompatible chemicals. In case of accidental contact, follow emergency procedures promptly.

Q: What are the physical properties and appearance of Methanesulfonic anhydride?

A: This compound appears as a colorless to pale yellow liquid or crystalline solid, often with an acrid, pungent odor. Its melting point is 30-33C, and its density is 1.54 g/cm. It hydrolyzes in water but dissolves well in polar aprotic solvents.

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