Description

4-Hydroxy-5-Methyl-2-Thiophenecarboxylic Acid Ethyl Ester is a high-purity, functionalized thiophene derivative serving as a critical building block in advanced organic synthesis. This compound is valued for its unique heterocyclic structure, which provides a versatile scaffold for constructing complex molecules with tailored properties. It is primarily sought by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in medicinal chemistry programs targeting various therapeutic areas.
• Agrochemical Research: Used in the synthesis of advanced crop protection agents and pesticides, leveraging its heterocyclic core for bioactivity.
• Material Science Precursor: Serves as a monomer or functional unit in the development of conductive polymers, organic semiconductors, and specialty polymers.
• Chemical Synthesis Building Block: Employed in organic synthesis for constructing complex thiophene-containing structures for further chemical modification.
• Ligand and Catalyst Development: Utilized in the preparation of specialized ligands for metal catalysis and coordination chemistry applications.
• Academic and Industrial R&D: A valuable reagent for exploratory research in synthetic methodology and new compound library generation.

Basic Information

Product Name	4-Hydroxy-5-Methyl-2-Thiophenecarboxylic Acid Ethyl Ester
CAS No.	5556-09-2
Molecular Formula	C8H10O3S
Molecular Weight	186.23 g/mol
Synonyms	Ethyl 4-hydroxy-5-methylthiophene-2-carboxylate; 5-Methyl-4-hydroxythiophene-2-carboxylic acid ethyl ester; 2-Thiophenecarboxylic acid, 4-hydroxy-5-methyl-, ethyl ester; 4-Hydroxy-5-methyl-2-thiophenecarboxylic acid ethyl ester; Ethyl 4-hydroxy-5-methyl-2-thiophenecarboxylate; 4-Hydroxy-5-methylthiophene-2-carboxylic Acid Ethyl Ester
EINECS	226-918-4

Quality Control

Our 4-Hydroxy-5-Methyl-2-Thiophenecarboxylic Acid Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality commitment ensures the material meets the high standards required 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 a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The compound may be light-sensitive; prolonged exposure to light should be avoided.

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.