Description

5-Methyl-Benzo[B]Thiophene-2-Carboxylic Acid Methyl Ester is a high-purity, synthetically valuable heterocyclic building block essential for advanced organic synthesis. This compound serves as a critical intermediate in the development of novel pharmaceuticals, agrochemicals, and functional materials. It is primarily sought after by research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with benzothiophene cores, which are explored for various therapeutic applications.
• Agrochemical Synthesis: Used in the research and production of novel herbicides, fungicides, and insecticides, leveraging its heterocyclic structure for biological activity.
• Material Science Research: Serves as a building block for organic semiconductors, liquid crystals, and other functional organic materials due to its conjugated system.
• Chemical Research & Development: Employed in academic and industrial R&D for method development, scaffold hopping, and creating compound libraries for screening.
• Dye and Pigment Intermediate: Can be utilized in the synthesis of specialized dyes and pigments where the benzothiophene moiety imparts specific color or stability properties.

Basic Information

Product Name	5-Methyl-Benzo[B]Thiophene-2-Carboxylic Acid Methyl Ester
CAS No.	82787-69-7
Molecular Formula	C11H10O2S
Molecular Weight	206.26 g/mol
Synonyms	Methyl 5-Methylbenzo[b]thiophene-2-carboxylate; 5-Methyl-1-benzothiophene-2-carboxylic Acid Methyl Ester; 2-Methoxycarbonyl-5-methylbenzo[b]thiophene; 5-Methylbenzo[b]thiophene-2-carboxylic acid, methyl ester; 5-Methylbenzothiophene-2-carboxylic Acid Methyl Ester; Methyl 5-Methyl-1-benzothiophene-2-carboxylate
EINECS	Contact for details

Quality Control

Our 5-Methyl-Benzo[B]Thiophene-2-Carboxylic Acid Methyl Ester is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are 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 controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (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.