Description

3-Methoxy-4-Methylthiophene-2-Carboxylic Acid 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 enables the construction of complex molecules with tailored electronic and steric properties. It is primarily sought after by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and materials 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 central nervous system (CNS) disorders and anti-inflammatory agents.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the thiophene core contributes to biological activity and environmental stability.
• Organic Electronic Materials: Serves as a precursor for conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs).
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for transition metal catalysis, facilitating challenging cross-coupling and asymmetric reactions.
• Chemical Research & Development: A versatile reagent for academic and industrial research exploring new heterocyclic chemistry, structure-activity relationships (SAR), and novel synthetic methodologies.
• Specialty Chemical Production: Used in the manufacture of dyes, pigments, and other performance chemicals where the methoxy and carboxylic acid functionalities allow for further derivatization.

Basic Information

Product Name	3-Methoxy-4-Methylthiophene-2-Carboxylic Acid
CAS No.	83261-25-0
Molecular Formula	C7H8O3S
Molecular Weight	172.20 g/mol
Synonyms	2-Carboxy-3-methoxy-4-methylthiophene; 4-Methyl-3-methoxythiophene-2-carboxylic acid; 3-Methoxy-4-methyl-2-thiophenecarboxylic acid; 3-Methoxy-4-methylthiophene-2-carboxylic acid; 83261-25-0; Thiophene-2-carboxylic acid, 3-methoxy-4-methyl-; 4-Methyl-3-methoxythiophene-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our 3-Methoxy-4-Methylthiophene-2-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all relevant specifications. Our quality commitment ensures the material is suitable for demanding applications in pharmaceutical research and specialty chemical synthesis.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, open flames, and incompatible materials. The container must be kept tightly sealed to protect the contents 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.