Description

4-Ethoxythiophene-2-Carboxylic Acid is a high-purity, functionalized heterocyclic building block of significant interest in advanced organic synthesis. This compound matters as a versatile precursor for constructing complex molecular architectures, particularly in pharmaceutical and agrochemical research. It is primarily needed by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and material science industries for applications such as drug discovery and the development of novel electronic materials.

Application

• Pharmaceutical Intermediate: A key synthon in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those containing thiophene scaffolds.
• Agrochemical Research: Used as a building block for developing new herbicides, fungicides, and insecticides with tailored properties.
• Material Science: Serves as a monomer or precursor for conductive polymers and organic electronic materials due to the thiophene core.
• Ligand Synthesis: Utilized in the preparation of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Chemical Biology: Employed as a probe or tag in bioconjugation chemistry and the development of biochemical tools.
• Academic & Industrial R&D: A valuable reagent for methodological development and exploring new chemical reactions in heterocyclic chemistry.

Basic Information

Product Name	4-Ethoxythiophene-2-Carboxylic Acid
CAS No.	917980-53-1
Molecular Formula	C7H8O3S
Molecular Weight	172.20 g/mol
Synonyms	2-Carboxy-4-ethoxythiophene; 4-Ethoxy-2-thiophenecarboxylic Acid; 4-Ethoxythiophene-2-carboxylic acid; 2-Thiophenecarboxylic acid, 4-ethoxy-; Thiophene-2-carboxylic acid, 4-ethoxy-; 917980-53-1; 4-Ethoxy-thiophene-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our 4-Ethoxythiophene-2-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality commitment supports applications requiring high-purity intermediates for research and development.

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. 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
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.