Description

3-Chloro-5-Methylthiophene-2-Carboxylic Acid is a high-purity heterocyclic building block of significant commercial interest. This compound serves as a critical intermediate in the synthesis of advanced pharmaceutical agents and agrochemicals, enabling the construction of complex molecular architectures. It is primarily sought after by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel active ingredients.

Application

• Pharmaceutical Intermediate: A key synthon in the research and production of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and infectious diseases.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and insecticides, leveraging the thiophene scaffold for enhanced bioactivity.
• Material Science Precursor: Serves as a monomer or functionalizing agent in the synthesis of conductive polymers and organic electronic materials.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new chemical reactions and synthesizing complex heterocyclic libraries.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing specialized dyes and pigments with specific light-absorption properties.

Basic Information

Product Name	3-Chloro-5-Methylthiophene-2-Carboxylic Acid
CAS No.	229343-22-0
Molecular Formula	C7H5ClO2S
Molecular Weight	188.63 g/mol
Synonyms	3-Chloro-5-methyl-2-thiophenecarboxylic acid; 2-Thiophenecarboxylic acid, 3-chloro-5-methyl-; 3-Chloro-5-methylthiophene-2-carboxylic acid; 3-Chloro-5-methyl-2-thiophenecarboxylic acid; 3-Chloro-5-methylthiophene-2-carboxylic acid; 3-Chloro-5-methylthiophene-2-carboxylic acid; 3-Chloro-5-methyl-2-thiophenecarboxylic acid; 3-Chloro-5-methylthiophene-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 3-Chloro-5-Methylthiophene-2-Carboxylic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided with each shipment and are available upon request.

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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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