Description

4-Methyl-2-Thiophenesulfonyl Chloride is a versatile and highly reactive organosulfur compound, primarily used as a key sulfonylation reagent and a critical building block in advanced organic synthesis. Its value lies in its ability to introduce the 4-methyl-2-thiophenesulfonyl moiety, a functional group of significant interest in the development of pharmaceuticals and specialty chemicals. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries seeking to develop novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs), particularly in the development of sulfonamide-based drugs and other bioactive molecules.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides, where the thiophene ring system can confer specific biological activity.
• Material Science & Polymer Chemistry: Serves as a monomer or functionalization agent for creating specialty polymers, conductive materials, or ligands with tailored electronic properties.
• Chemical Research & Development: Employed as a versatile reagent in organic synthesis for constructing complex heterocyclic compounds and for introducing sulfonyl protecting groups.
• Dye & Pigment Manufacturing: Acts as an intermediate in the synthesis of specialized dyes and pigments that incorporate the thiophene structure for color and stability.

Basic Information

Product Name	4-Methyl-2-Thiophenesulfonyl Chloride
CAS No.	69815-97-0
Molecular Formula	C5H5ClO2S2
Molecular Weight	196.68 g/mol
Synonyms	2-Thiophenesulfonyl chloride, 4-methyl-; 4-Methylthiophene-2-sulfonyl chloride; 4-Methyl-2-thienylsulfonyl chloride; 4-Methylthiophene-2-sulphonyl chloride; 4-Methyl-2-thiophenesulfonic acid chloride; 69815-97-0; 4-Methyl-2-thienylsulfonyl chloride
EINECS	Contact for details

Quality Control

Our 4-Methyl-2-Thiophenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, 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 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). This product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) to prevent degradation. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or 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.