Description

2-Thiophenesulfonyl Chloride is a versatile and highly reactive organosulfur compound that serves as a critical building block in advanced chemical synthesis. Its value lies in its ability to act as a sulfonylation reagent, introducing the thiophene-sulfonyl moiety to create novel molecules with tailored properties. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science sectors, where it is used to develop active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: Key building block for 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 and selectivity.
• Polymer & Material Science: Serves as a monomer or modifier for producing conductive polymers, specialty coatings, and advanced materials.
• Organic Synthesis Reagent: Employed as a sulfonylating agent in complex organic transformations to introduce functional groups.
• Dye & Pigment Manufacturing: Intermediate in the production of specialized dyes and pigments with unique chromatic properties.
• Research & Development: A valuable tool in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	2-Thiophenesulfonyl Chloride
CAS No.	16629-19-9
Molecular Formula	C4H3ClO2S2
Molecular Weight	182.65 g/mol
Synonyms	Thiophene-2-sulfonyl chloride; 2-Thienylsulfonyl chloride; 2-Thiophenesulfonic acid chloride; Thiophene-2-sulfonic acid chloride; 2-Sulfothienyl chloride; 2-Thiophenesulphonyl chloride; 2-Thienylsulphonyl chloride
EINECS	240-704-5

Quality Control

Our 2-Thiophenesulfonyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee it meets your specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature and reactivity as a strong acid/organic solvent, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation from moisture and ensure long-term stability. Keep away from heat, open flames, and incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or crystalline solid
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.