Description

2,4-Thiophenedicarboxylicacid,3-Methyl-,4-Ethylester(9Ci) is a high-purity, functionalized thiophene derivative serving as a critical building block in advanced organic synthesis. This compound matters for its role in constructing complex molecular architectures, particularly in the development of novel materials and active pharmaceutical ingredients. It is primarily needed by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty materials sectors seeking reliable, high-quality intermediates for their R&D and production processes.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing specific receptor activity.
• Agrochemical Research: Used in the development of new-generation herbicides, fungicides, and insecticides, leveraging the thiophene moiety for bioactivity.
• Organic Electronic Materials: Serves as a precursor for conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs).
• Ligand Synthesis: Employed in the preparation of specialized ligands for catalysis, including those used in cross-coupling reactions and asymmetric synthesis.
• Dye and Pigment Manufacturing: Acts as a core structure for creating novel heterocyclic dyes with specific coloristic and fastness properties.
• Academic & Industrial R&D: A versatile reagent for methodological development and exploration of new chemical spaces in synthetic organic chemistry.

Basic Information

Product Name	2,4-Thiophenedicarboxylicacid,3-Methyl-,4-Ethylester(9Ci)
CAS No.	799283-87-7
Molecular Formula	C9H10O4S
Molecular Weight	214.24 g/mol
Synonyms	3-Methyl-2,4-thiophenedicarboxylic acid 4-ethyl ester; 4-Ethyl 3-methylthiophene-2,4-dicarboxylate; Ethyl 3-methyl-4-(ethoxycarbonyl)thiophene-2-carboxylate; 3-Methylthiophene-2,4-dicarboxylic acid 4-ethyl ester; 2,4-Thiophenedicarboxylic acid, 3-methyl-, 4-ethyl ester; 799283-87-7; 4-Ethoxycarbonyl-3-methylthiophene-2-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 2,4-Thiophenedicarboxylicacid,3-Methyl-,4-Ethylester(9Ci) is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency meet the high standards required for research and industrial use. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 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.