Description

3-Thiophenesulfonyl Chloride is a versatile and highly reactive organosulfur compound, serving as a critical building block in advanced organic synthesis. Its primary value lies in its role as a sulfonylation reagent, enabling the efficient introduction of the thiophenesulfonyl moiety into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries, particularly for developing active pharmaceutical ingredients (APIs), functional polymers, and specialized chemical intermediates.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in creating novel herbicides, fungicides, and insecticides with enhanced efficacy.
• Polymer & Material Science: Acts as a monomer or modifying agent for producing conductive polymers, specialty coatings, and advanced materials.
• Chemical Research & Development: Fundamental reagent in medicinal chemistry and process chemistry for exploring new molecular entities.
• Dye & Pigment Manufacturing: Intermediate in the production of specialized sulfur-containing dyes and organic pigments.
• Ligand & Catalyst Preparation: Used to synthesize complex ligands for catalysis and metal-organic frameworks (MOFs).

Basic Information

Product Name	3-Thiophenesulfonyl Chloride
CAS No.	51175-71-4
Molecular Formula	C4H3ClO2S2
Molecular Weight	182.65 g/mol
Synonyms	Thiophene-3-sulfonyl chloride; 3-Thienylsulfonyl chloride; 3-Thiophenesulfonic acid chloride; 3-Sulfothienyl chloride; 3-Thiophenesulphonyl chloride; Thiophene-3-sulphonyl chloride; 3-Thienylsulphonyl chloride
EINECS	Contact for details

Quality Control

Our 3-Thiophenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. Certificates of Analysis (COA) detailing identity, purity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic and reactive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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