Description

2-Thiophenecarboxylic Acid, 3,4-Dichloro- is a high-purity, halogenated heterocyclic building block of significant importance in advanced organic synthesis. Its value lies in its role as a key intermediate for constructing complex molecules, particularly in the pharmaceutical and agrochemical sectors. This compound is essential for researchers and manufacturers developing active pharmaceutical ingredients (APIs), crop protection agents, and functional materials who require reliable access to high-quality, specialty intermediates.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, anti-infectives, and other therapeutic areas.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and insecticides, where the dichlorothiophene moiety contributes to biological activity.
• Material Science Research: Serves as a precursor for functional polymers, liquid crystals, and organic electronic materials due to its electron-rich thiophene core.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new organic reactions and creating complex molecular architectures.
• Fine Chemical Production: An intermediate in the multi-step synthesis of dyes, pigments, and other high-value specialty chemicals.

Basic Information

Product Name	2-Thiophenecarboxylic Acid, 3,4-Dichloro-
CAS No.	61209-02-7
Molecular Formula	C5H2Cl2O2S
Molecular Weight	196.04 g/mol
Synonyms	3,4-Dichloro-2-thiophenecarboxylic acid; 3,4-Dichlorothiophene-2-carboxylic acid; 3,4-Dichloro-2-carboxythiophene; 2-Thiophenecarboxylic acid, 3,4-dichloro-; 3,4-Dichlorothiophene-2-carboxylate; 3,4-Dichloro-2-thiophenecarboxylate; 3,4-Dichloro-2-thiophenecarboxylic acid (CAS 61209-02-7)
EINECS	Contact for details

Quality Control

Our 2-Thiophenecarboxylic Acid, 3,4-Dichloro- is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure it meets the high standards required for pharmaceutical and fine chemical applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C. The compound is light-sensitive and should be stored away from light.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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