Description

Ethanesulfonic Anhydride is a highly reactive sulfonating and sulfonylating agent used in organic synthesis. This compound is critical for introducing the ethanesulfonyl group into target molecules, enabling the creation of sulfonates, sulfonamides, and other functionalized intermediates. It is particularly valuable for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new active ingredients or modify compound properties.

Application

• Pharmaceutical Intermediate Synthesis: Key reagent for the production of sulfonamide drugs and other active pharmaceutical ingredients (APIs).
• Agrochemical Manufacturing: Used in the synthesis of herbicides, fungicides, and insecticides that contain sulfonyl functional groups.
• Polymer Modification: Acts as a sulfonating agent to modify polymers, imparting new characteristics like hydrophilicity or ionic conductivity.
• Dye and Pigment Production: Employed in the synthesis of sulfonated dyes and organic pigments.
• Chemical Research & Development: A versatile building block in organic chemistry labs for creating novel sulfone and sulfonate compounds.
• Electrolyte Additive: Potential use in the formulation of advanced electrolytes for energy storage systems.

Basic Information

Product Name	Ethanesulfonic Anhydride
CAS No.	13223-06-8
Molecular Formula	C4H10O5S2
Molecular Weight	202.25 g/mol
Synonyms	Ethanesulfonic Acid Anhydride; Ethylsulfonic Anhydride; Di(ethylsulfonyl) Ether; Ethanesulfonyl Ethanesulfonate; ESA; 1,1'-Oxybis(ethane-1-sulfonic acid); Bis(ethanesulfonic) anhydride
EINECS	Contact for details

Quality Control

Our Ethanesulfonic Anhydride is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including assay by titration and impurity profile analysis, to ensure high purity and consistency. A Certificate of Analysis (COA) detailing all specifications is provided with every shipment to guarantee traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and reacts with strong acids/organic solvents; keep the container tightly sealed and handle under dry conditions to prevent decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 98.0 %
Water Content (KF)	≤ 0.5 %
Related Impurities (HPLC)	≤ 1.0 % (total)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.