Description

2-Thiophenecarboxylic Acid, 5-Methyl-, Ethyl Ester is a high-purity organic compound belonging to the thiophene family, serving as a versatile and critical building block in advanced chemical synthesis. Its value lies in its unique heterocyclic structure, which is essential for introducing specific functionalities into target molecules. This intermediate is particularly sought after by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing novel active ingredients.

Application

• Pharmaceutical Intermediate: A key synthon in the research and production of active pharmaceutical ingredients (APIs), particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the development of advanced pesticides, herbicides, and fungicides, where the thiophene moiety contributes to biological activity.
• Material Science Research: Acts as a precursor for organic semiconductors, conductive polymers, and other functional materials due to its electron-rich aromatic system.
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for metal catalysis and organocatalysts used in asymmetric synthesis.
• Flavor and Fragrance Industry: Serves as a starting material for creating complex sulfur-containing aroma compounds.
• Organic Synthesis Building Block: Utilized in various name reactions and multi-step syntheses to construct more complex heterocyclic systems.

Basic Information

Product Name	2-Thiophenecarboxylic Acid, 5-Methyl-, Ethyl Ester
CAS No.	5751-81-5
Molecular Formula	C8H10O2S
Molecular Weight	170.23 g/mol
Synonyms	Ethyl 5-Methyl-2-thiophenecarboxylate; 5-Methyl-2-thiophenecarboxylic Acid Ethyl Ester; Ethyl 5-Methylthiophene-2-carboxylate; 2-Carbethoxy-5-methylthiophene; 5-Methyl-2-thienylcarboxylic Acid Ethyl Ester; Ethyl 5-Methyl-2-thienoate
EINECS	227-274-5

Quality Control

Our production of 2-Thiophenecarboxylic Acid, 5-Methyl-, Ethyl Ester adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including chromatography (HPLC, GC) and spectroscopic methods (NMR, IR), to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC/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.