Description

2-Chloro-5-Methylthiophene-3-Carboxylic Acid is a high-purity, versatile heterocyclic building block essential for advanced organic synthesis. Its core value lies in its functionalized thiophene scaffold, which serves as a critical intermediate for constructing complex molecules with tailored properties. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing new active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in medicinal chemistry programs targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, leveraging its heterocyclic structure for bioactivity.
• Material Science Research: Serves as a precursor for functional polymers, organic semiconductors, and conductive materials due to the electron-rich thiophene core.
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for metal catalysis and coordination chemistry applications.
• Custom Synthesis and Contract Manufacturing: A fundamental building block for custom chemical synthesis services catering to R&D and scale-up projects.

Basic Information

Product Name	2-Chloro-5-Methylthiophene-3-Carboxylic Acid
CAS No.	54494-61-0
Molecular Formula	C7H5ClO2S
Molecular Weight	188.63 g/mol
Synonyms	3-Thiophenecarboxylic acid, 2-chloro-5-methyl-; 2-Chloro-5-methyl-3-thiophenecarboxylic acid; 2-Chloro-5-methylthiophene-3-carboxylic acid; 5-Methyl-2-chlorothiophene-3-carboxylic acid; 2-Chloro-5-methylthiophene-3-carboxylate; 54494-61-0; 2-Chloro-5-methyl-3-thiophene carboxylic acid
EINECS	Contact for details

Quality Control

Our 2-Chloro-5-Methylthiophene-3-Carboxylic Acid is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting full specifications 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, well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The product is light-sensitive and should be stored away from direct light exposure.

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%

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