Description

Methyl 5-Chloro-3-Methoxythiophene-2-Carboxylate is a high-purity, multi-functional heterocyclic building block essential for advanced organic synthesis. This compound is valued for its unique thiophene core, which serves as a critical intermediate in the development of complex molecules with specific electronic and pharmacological properties. It is primarily sought after by research chemists and process development teams in the pharmaceutical and agrochemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for central nervous system (CNS) and anti-inflammatory targets.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the thiophene moiety contributes to biological activity.
• Material Science Precursor: Serves as a building block for conjugated polymers and organic semiconductors used in electronic devices.
• Chemical Research: Employed in academic and industrial R&D for method development and exploring novel heterocyclic chemistry.
• Ligand and Catalyst Development: Utilized to create specialized ligands for metal-catalyzed cross-coupling reactions.

Basic Information

Product Name	Methyl 5-Chloro-3-Methoxythiophene-2-Carboxylate
CAS No.	181063-65-0
Molecular Formula	C7H7ClO3S
Molecular Weight	206.65 g/mol
Synonyms	5-Chloro-3-methoxythiophene-2-carboxylic acid methyl ester; Methyl 5-chloro-3-methoxy-2-thiophenecarboxylate; 2-Thiophenecarboxylic acid, 5-chloro-3-methoxy-, methyl ester; 181063-65-0; 5-Chloro-3-methoxythiophene-2-methyl carboxylate
EINECS	Contact for details

Quality Control

Our production of Methyl 5-Chloro-3-Methoxythiophene-2-Carboxylate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced chromatographic and spectroscopic techniques (HPLC, GC, NMR) against established internal specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and incompatible organic solvents. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

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%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.