Description

3,4-Thiophenedicarboxylic Acid, 2-Amino-, 3-Ethyl 4-Methyl Ester is a high-purity, functionalized thiophene derivative that serves as a critical building block in advanced organic synthesis. This compound is valued for its unique molecular architecture, which combines an amino group with ester functionalities on the thiophene core, enabling precise chemical modifications. It is primarily sought after by research institutions and industrial R&D departments focused on developing novel materials, including organic semiconductors, pharmaceutical intermediates, and specialized agrochemicals.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel active pharmaceutical ingredients (APIs), particularly for targeted therapies.
• Organic Electronic Materials: Used in the research and development of organic semiconductors, conductive polymers, and components for OLEDs and solar cells.
• Agrochemical Synthesis: Acts as a versatile building block for creating new generations of herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Chemistry: Employed in the synthesis of advanced dyes, pigments, and optical brighteners due to the thiophene scaffold.
• Ligand and Catalyst Development: Utilized to create novel ligands for metal-organic frameworks (MOFs) and catalysts for asymmetric synthesis.
• Academic and Industrial R&D: A valuable reagent for methodological studies in heterocyclic and medicinal chemistry.

Basic Information

Product Name	3,4-Thiophenedicarboxylic Acid, 2-Amino-, 3-Ethyl 4-Methyl Ester
CAS No.	844502-63-2
Molecular Formula	C10H11NO4S
Molecular Weight	241.26 g/mol
Synonyms	2-Amino-3,4-thiophenedicarboxylic acid 3-ethyl 4-methyl ester; 3-Ethyl 4-methyl 2-aminothiophene-3,4-dicarboxylate; Ethyl methyl 2-amino-3,4-thiophenedicarboxylate; 2-Aminothiophene-3,4-dicarboxylic acid ethyl methyl ester; Amino-thiophene-dicarboxylic acid ester; ATDE ester; CAS 844502-63-2
EINECS	Contact for details

Quality Control

Every batch of 3,4-Thiophenedicarboxylic Acid, 2-Amino-, 3-Ethyl 4-Methyl Ester is manufactured and tested under a strict quality management system. We provide comprehensive analytical data to ensure the product meets the high-purity standards required for research and development applications. A detailed Certificate of Analysis (COA) is available for each lot, confirming identity, purity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow 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.