Description

3,4-Thiophenedicarboxylic Acid, Dimethyl Ester is a high-purity organic building block and key synthetic intermediate. This compound matters for its role as a versatile precursor in the development of advanced materials and active pharmaceutical ingredients (APIs). It is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty polymer sectors for constructing complex heterocyclic systems.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block in the synthesis of novel drug candidates, particularly those containing the thiophene scaffold for therapeutic applications.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the thiophene moiety can impart specific biological activity.
• Organic Electronic Materials: Acts as a precursor for monomers and polymers used in organic semiconductors, OLEDs (Organic Light-Emitting Diodes), and conductive materials.
• Ligand and Catalyst Development: Employed in the preparation of specialized ligands for coordination chemistry and catalytic processes.
• Chemical Research & Development: A valuable reagent for academic and industrial R&D focused on heterocyclic chemistry and novel organic synthesis pathways.
• Dye and Pigment Industry: Utilized as an intermediate in the synthesis of specialized dyes and functional colorants.

Basic Information

Product Name	3,4-Thiophenedicarboxylic Acid, Dimethyl Ester
CAS No.	4282-35-3
Molecular Formula	C8H8O4S
Molecular Weight	200.21 g/mol
Synonyms	Dimethyl 3,4-Thiophenedicarboxylate; 3,4-Thiophenedicarboxylic Acid Dimethyl Ester; 3,4-Bis(methoxycarbonyl)thiophene; Thiophene-3,4-dicarboxylic Acid Dimethyl Ester; 3,4-Dimethoxycarbonylthiophene; Methyl 3,4-Thiophenedicarboxylate; 3,4-Thiophenedicarboxylic Acid Methyl Ester
EINECS	224-289-7

Quality Control

Our 3,4-Thiophenedicarboxylic Acid, Dimethyl Ester is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) documenting purity, identity, and impurity profiles are available for every shipment upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (typically 15-25°C). Keep away from strong acids and incompatible materials. The container should be kept tightly sealed in a dry environment to maintain product integrity.

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%

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