Description

β-Styrene Sulfonyl Chloride is a versatile and highly reactive sulfonylation reagent used in organic synthesis. This compound is crucial for introducing the styrene sulfonyl functional group, enabling the creation of advanced polymers, specialty chemicals, and pharmaceutical intermediates. It is primarily sought after by R&D chemists and process engineers in the fine chemical, pharmaceutical, and polymer industries for its role in constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate Synthesis: A key building block for creating sulfonamide-based active pharmaceutical ingredients (APIs) and other bioactive molecules.
• Polymer Modification & Functionalization: Used to introduce sulfonyl chloride groups into polymer backbones (e.g., polystyrene) for creating ion-exchange resins, membranes, and specialty polymers.
• Crosslinking Agent: Employed in the production of crosslinked polymeric materials to enhance thermal stability and mechanical properties.
• Dye & Pigment Manufacturing: Serves as a precursor in the synthesis of sulfonated dyes and pigments, improving their solubility and application properties.
• Chemical Research & Development: A valuable reagent in academic and industrial R&D labs for exploring new sulfonylation reactions and material science applications.
• Surface Modification: Used to functionalize surfaces with reactive sulfonyl chloride groups for subsequent conjugation with amines or other nucleophiles.

Basic Information

Product Name	β-Styrene Sulfonyl Chloride
CAS No.	4091-26-3
Molecular Formula	C8H7ClO2S
Molecular Weight	202.66 g/mol
Synonyms	2-(Chlorosulfonyl)styrene; 2-Vinylbenzenesulfonyl chloride; o-Styrenesulfonyl chloride; (2-Ethenylphenyl)sulfonyl chloride; 2-Ethenylbenzenesulfonyl chloride; Vinylphenylsulfonyl chloride; BSSCl; β-Styrenesulfonyl Chloride
EINECS	223-834-5

Quality Control

Our β-Styrene Sulfonyl Chloride is produced under stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including purity assay and impurity profiling, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing specific results is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent decomposition. Keep away from heat, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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