Description

5-Amino-3-Methyl-Thiophene-2,4-Dicarboxylic Acid Dimethyl Ester is a high-purity, multi-functional heterocyclic building block essential for advanced organic synthesis. This compound is valued for its reactive amino and ester groups, which enable its use as a key intermediate in the development of complex molecular architectures. It is primarily sought by R&D chemists and process development teams in the pharmaceutical, agrochemical, and material science industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of novel drug candidates, particularly those with thiophene-based scaffolds targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides, leveraging its heterocyclic structure for bioactivity.
• Organic Light-Emitting Diodes (OLEDs): Serves as a building block for electron-transport materials or emissive layer components in electronic display technologies.
• Coordination Chemistry & Ligand Design: The amino and carbonyl groups make it a useful starting material for designing chelating ligands for metal catalysts.
• Polymer & Material Science: Incorporated into specialty polymers and advanced materials to impart specific chemical or physical properties.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized dyes and pigments where the thiophene ring contributes to color and stability.

Basic Information

Product Name	5-Amino-3-Methyl-Thiophene-2,4-Dicarboxylic Acid Dimethyl Ester
CAS No.	103765-33-9
Molecular Formula	C9H11NO4S
Molecular Weight	229.25 g/mol
Synonyms	Dimethyl 5-Amino-3-methylthiophene-2,4-dicarboxylate; 2,4-Thiophenedicarboxylic acid, 5-amino-3-methyl-, dimethyl ester; 5-Amino-3-methylthiophene-2,4-dicarboxylic acid dimethyl ester; Dimethyl 5-amino-3-methyl-2,4-thiophenedicarboxylate; 3-Methyl-5-aminothiophene-2,4-dicarboxylic acid dimethyl ester
EINECS	Contact for details

Quality Control

Every batch of 5-Amino-3-Methyl-Thiophene-2,4-Dicarboxylic Acid Dimethyl Ester undergoes rigorous analytical testing to ensure it meets the high-purity standards required for research and production. Our quality assurance protocol includes identity confirmation, purity assay, and impurity profiling. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance with your specifications.

Storage

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

Specification

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