Description

2-Methyl-3-thiophenecarboxylic acid, ethyl ester is a high-purity organic building block and a key heterocyclic intermediate. This compound is valued for its role in the synthesis of complex molecules, particularly in advanced material science and pharmaceutical research. It is primarily sought by R&D chemists and process development scientists in the agrochemical, pharmaceutical, and specialty chemical industries for constructing novel thiophene-based derivatives.

Application

• Pharmaceutical Intermediate: A crucial building block for the synthesis of active pharmaceutical ingredients (APIs) and drug candidates containing the thiophene moiety.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides, where the thiophene ring contributes to biological activity.
• Material Science Research: Serves as a precursor for organic semiconductors, conductive polymers, and other advanced electronic materials due to the electron-rich nature of thiophene.
• Ligand and Catalyst Development: Employed in the creation of specialized ligands for metal-catalyzed cross-coupling reactions and other catalytic processes.
• Flavor & Fragrance Industry: Acts as an intermediate for synthesizing specific sulfur-containing aroma compounds, subject to appropriate regulatory approvals.
• Organic Synthesis & Chemical Research: A versatile reagent for constructing complex heterocyclic systems in academic and industrial R&D laboratories.

Basic Information

Product Name	2-Methyl-3-thiophenecarboxylic Acid, Ethyl Ester
CAS No.	19432-66-7
Molecular Formula	C8H10O2S
Molecular Weight	170.23 g/mol
Synonyms	Ethyl 2-Methyl-3-thiophenecarboxylate; 2-Methylthiophene-3-carboxylic Acid Ethyl Ester; 3-(Ethoxycarbonyl)-2-methylthiophene; Ethyl 2-Methyl-3-thiophenecarboxylate; 2-Methyl-3-carbethoxythiophene; 3-Carbethoxy-2-methylthiophene; 2-Methyl-3-thiophenecarboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 2-Methyl-3-thiophenecarboxylic acid, ethyl ester is produced under strict quality management systems. Every batch undergoes comprehensive analytical testing, including chromatography (HPLC/GC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support cGMP and ISO standards for research and development applications.

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 acids and incompatible organic solvents. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 97.0% (Standard Grade)
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.