Description

1-Chloroethyl Sulfochloridate is a highly reactive organosulfur compound primarily used as a key sulfonylation and chlorosulfonylation reagent in advanced organic synthesis. Its value lies in its ability to introduce the sulfonyl chloride functional group, a versatile precursor for sulfonamides, sulfonate esters, and other sulfur-containing derivatives critical in modern chemical manufacturing. This intermediate is essential for researchers and process chemists in the pharmaceutical, agrochemical, and specialty chemical industries developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block for the synthesis of novel sulfonamide-based drug candidates, including protease inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of sulfonylurea herbicides and other crop protection agents that require specific sulfonyl chloride intermediates.
• Polymer Modification: Acts as a functionalizing agent to introduce sulfonate groups into polymer chains, altering solubility and ionic properties for specialty materials.
• Dye and Pigment Manufacturing: Employed in the synthesis of sulfonated dyes and colorants to enhance water solubility and fiber affinity.
• Chemical Research & Development: A valuable reagent for method development and exploring new sulfonylation reactions in academic and industrial R&D laboratories.
• Ligand and Catalyst Preparation: Used to synthesize sulfonated ligands for metal complexes and catalysts used in asymmetric synthesis.

Basic Information

Product Name	1-Chloroethyl Sulfochloridate
CAS No.	90906-61-9
Molecular Formula	C2H4Cl2O3S
Molecular Weight	187.02 g/mol
Synonyms	Chloroethyl Chlorosulfonate; 1-Chloroethyl Chlorosulfonate; Ethyl, 1-chloro-, chlorosulfonate; Sulfurochloridic acid, 1-chloroethyl ester; 1-Chloroethylsulfonyl chloride; α-Chloroethyl chlorosulfonate
EINECS	Contact for details

Quality Control

Our 1-Chloroethyl Sulfochloridate is manufactured under strict process controls to ensure batch-to-batch consistency and high chemical purity. Quality is verified through a comprehensive suite of analytical techniques including GC, HPLC, and NMR spectroscopy. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place away from incompatible materials such as strong bases, amines, and alcohols. Due to its nature as a strong acid/organic solvent and highly volatile compound, it should be handled and stored with appropriate precautions to prevent moisture ingress and decomposition. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.5%

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