Description

2-Chloroethanesulfonic Acid Sodium Salt Monohydrate is a versatile organosulfur compound that serves as a key synthetic intermediate and sulfonation reagent. Its value lies in its ability to introduce the sulfonic acid functional group under controlled conditions, enabling the synthesis of surfactants, pharmaceuticals, and specialty chemicals. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries who require a reliable and high-purity building block for complex molecular assembly.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly those requiring a sulfonate moiety for enhanced solubility or biological activity.
• Agrochemical Synthesis: Serves as a precursor in the manufacture of herbicides, fungicides, and plant growth regulators.
• Surfactant & Detergent Manufacturing: Acts as a key raw material for producing anionic surfactants and detergent additives.
• Chemical Research & Development: Employed as a versatile reagent for introducing the 2-chloroethanesulfonyl group in organic synthesis and medicinal chemistry.
• Polymer Modification: Used to functionalize polymers, imparting ionic character or improving water solubility.
• Bioconjugation & Protein Chemistry: Utilized as a linker or modifying agent for biomolecules in biochemical research.

Basic Information

Product Name	2-Chloroethanesulfonic Acid Sodium Salt Monohydrate
CAS No.	1089719-72-1
Molecular Formula	C2H4ClNaO4S • H2O
Molecular Weight	192.56 g/mol (Monohydrate)
Synonyms	Sodium 2-Chloroethanesulfonate Monohydrate; 2-Chloroethanesulfonic Acid Sodium Salt Hydrate; Sodium Chloroethanesulfonate; 2-Chloroethanesulfonate Sodium Salt; Ethanesulfonic acid, 2-chloro-, sodium salt, monohydrate; CES Sodium Salt; Chloroethylsulfonic Acid Sodium Salt
EINECS	Contact for details

Quality Control

Our 2-Chloroethanesulfonic Acid Sodium Salt Monohydrate is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets high-purity standards suitable for research and industrial synthesis. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and batch-to-batch consistency.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption, which can affect product stability and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	7.0 - 9.5% (Theoretical for monohydrate: ~9.35%)
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%
Chloride Content	Conforms

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