Description

4-Chloro-3-Methylbenzo[B]Thiophene-2-Carboxylic Acid is a high-purity, synthetically valuable heterocyclic building block. This compound is essential for advanced organic synthesis, particularly in the development of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily sought by research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides, leveraging its unique benzo[b]thiophene core.
• Material Science Research: Serves as a building block for organic semiconductors, liquid crystals, and other advanced functional materials.
• Chemical Research & Development: A versatile reagent for exploring new organic reactions and synthesizing complex heterocyclic compounds in academic and industrial R&D labs.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized dyes and pigments due to its chromophoric properties.

Basic Information

Product Name	4-Chloro-3-Methylbenzo[B]Thiophene-2-Carboxylic Acid
CAS No.	66490-31-1
Molecular Formula	C10H7ClO2S
Molecular Weight	226.68 g/mol
Synonyms	4-Chloro-3-methyl-1-benzothiophene-2-carboxylic acid; 4-Chloro-3-methylbenzo[b]thiophene-2-carboxylic acid; 2-Carboxy-4-chloro-3-methylbenzo[b]thiophene; 4-Chloro-3-methyl-2-benzothiophenecarboxylic acid; 3-Methyl-4-chlorobenzo[b]thiophene-2-carboxylic acid; 66490-31-1; 4-Chloro-3-methylbenzo[b]thien-2-carboxylic acid
EINECS	Contact for details

Quality Control

Our 4-Chloro-3-Methylbenzo[B]Thiophene-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 specifications and test results. Our quality commitment supports applications requiring high-purity intermediates for GMP and non-GMP synthesis.

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 acids and incompatible organic solvents. The container must be kept tightly closed to prevent moisture absorption and contamination.

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.