Description

3,4-Dimethylthiophene-2-Carboxylic Acid is a high-purity, functionalized thiophene derivative serving as a critical building block in advanced organic synthesis. Its value lies in providing a versatile carboxylic acid handle on a substituted thiophene core, enabling the construction of complex molecules for material science and pharmaceutical research. This compound is essential for R&D chemists and process development scientists in the agrochemical, pharmaceutical, and specialty chemical industries seeking to develop novel active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing anti-inflammatory properties.
• Agrochemical Synthesis: Used in the research and development of new-generation herbicides, fungicides, and insecticides, leveraging the thiophene moiety for bioactivity.
• Organic Electronic Materials: Serves as a monomer or functionalization agent in the production of conductive polymers, organic semiconductors, and non-linear optical (NLO) materials.
• Ligand and Catalyst Development: The carboxylic acid group allows for coordination to metal centers, making it useful for creating novel ligands in catalytic systems.
• Chemical Research & Development: A versatile scaffold for heterocyclic and medicinal chemistry, enabling structure-activity relationship (SAR) studies and library synthesis.
• Dye and Pigment Intermediate: Employed in the synthesis of specialized dyes and pigments where the thiophene ring contributes to color and stability properties.

Basic Information

Product Name	3,4-Dimethylthiophene-2-Carboxylic Acid
CAS No.	89639-74-7
Molecular Formula	C7H8O2S
Molecular Weight	156.20 g/mol
Synonyms	2-Carboxy-3,4-dimethylthiophene; 3,4-Dimethyl-2-thiophenecarboxylic Acid; 3,4-Dimethylthiophene-2-carboxylic acid; 2-Thiophenecarboxylic acid, 3,4-dimethyl-; TCI-D3330
EINECS	Contact for details

Quality Control

Every batch of 3,4-Dimethylthiophene-2-Carboxylic Acid is manufactured and tested under a strict quality management system. We ensure the product meets high-purity standards suitable for research and scale-up applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and consistency for your critical processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong bases, oxidizing agents, and sources of ignition. Due to its nature as a strong acid/organic solvent, handle with appropriate personal protective equipment in a fume hood.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.