Description

4-Methylthiophene-2-Carbonyl Chloride is a high-purity, reactive organic intermediate essential for advanced chemical synthesis. Its primary value lies in its role as a versatile acylating agent, enabling the efficient introduction of the 4-methylthiophene-2-carbonyl moiety into target molecules. This compound is critically needed by R&D and production chemists in the pharmaceutical, agrochemical, and material science industries for constructing complex heterocyclic frameworks and active ingredients.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly those containing thiophene heterocycles.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides where the thiophene scaffold imparts specific biological activity.
• Material Science Precursor: Serves as a monomer or functionalization agent in the development of conductive polymers, organic semiconductors, and specialty coatings.
• Ligand and Catalyst Development: Employed in the preparation of specialized ligands for metal-organic catalysis and coordination chemistry.
• Custom Chemical Synthesis: A crucial reagent for contract research organizations (CROs) and fine chemical manufacturers producing bespoke compounds for clients.
• Academic and Industrial R&D: Fundamental research tool in organic chemistry for exploring new reaction methodologies and compound libraries.

Basic Information

Product Name	4-Methylthiophene-2-Carbonyl Chloride
CAS No.	32990-47-9
Molecular Formula	C7H5ClOS
Molecular Weight	172.63 g/mol
Synonyms	2-Thenoyl chloride, 4-methyl-; 4-Methyl-2-thiophenecarbonyl chloride; 4-Methylthiophene-2-carboxylic acid chloride; 4-Methyl-2-thenoyl chloride; 2-Carbonyl chloride-4-methylthiophene; 4-Methyl-2-thienoyl chloride; 4-Methylthieno[2,3-c]furan-6-carbonyl chloride (related structure)
EINECS	Contact for details

Quality Control

Our 4-Methylthiophene-2-Carbonyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing 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 area at controlled 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) after opening. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
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.