Description

Benzo[B]Thiophene-5-Carboxylic Acid Methyl Ester is a high-purity organic building block and synthetic intermediate of significant importance in advanced chemical synthesis. Its value lies in its precise molecular structure, which serves as a key precursor for the development of complex heterocyclic compounds. This product is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries who require reliable, high-quality intermediates for their R&D and production processes.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly those containing the benzothiophene scaffold for therapeutic applications.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic structure.
• Material Science Research: Serves as a monomer or precursor for developing organic electronic materials, such as semiconductors or light-emitting compounds.
• Organic Synthesis & Catalysis: An important reagent in academic and industrial laboratories for constructing complex molecular architectures and studying new catalytic reactions.
• Dye & Pigment Industry: Acts as a key intermediate in the production of specialized dyes and organic pigments.

Basic Information

Product Name	Benzo[B]Thiophene-5-Carboxylic Acid Methyl Ester
CAS No.	20532-39-2
Molecular Formula	C10H8O2S
Molecular Weight	192.23 g/mol
Synonyms	5-(Methoxycarbonyl)benzo[b]thiophene; Methyl 5-benzothiophenecarboxylate; Methyl benzo[b]thiophene-5-carboxylate; 1-Benzothiophene-5-carboxylic acid methyl ester; 5-Carbomethoxybenzo[b]thiophene; Benzo[b]thiophene-5-carboxylic acid, methyl ester
EINECS	Contact for details

Quality Control

Our Benzo[B]Thiophene-5-Carboxylic Acid Methyl Ester is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent lot-to-lot quality. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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.

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.