Description

5-Chloro-4,7-Dimethylbenzo[B]Thiophen-3(2H)-One is a high-purity, specialized heterocyclic organic compound that serves as a critical building block in advanced chemical synthesis. Its unique molecular structure makes it an invaluable intermediate for the development of complex molecules, particularly in the pharmaceutical and agrochemical sectors. This compound is essential for researchers and manufacturers requiring a reliable, high-quality precursor for active pharmaceutical ingredient (API) development and other fine chemical applications.

Application

• Pharmaceutical Intermediate: A key synthon 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 production of advanced pesticides and herbicides, leveraging its heterocyclic core for biological activity.
• Material Science Research: Serves as a precursor for the development of organic electronic materials and specialty polymers.
• Dye and Pigment Intermediate: Employed in the synthesis of specialized colorants and functional dyes due to its benzo[b]thiophene backbone.
• Chemical Research & Development: A versatile building block for organic chemists in academia and industry exploring new synthetic pathways and molecular architectures.

Basic Information

Product Name	5-Chloro-4,7-Dimethylbenzo[B]Thiophen-3(2H)-One
CAS No.	82-61-1
Molecular Formula	C10H9ClOS
Molecular Weight	212.69 g/mol
Synonyms	5-Chloro-4,7-dimethyl-3H-benzo[b]thiophen-3-one; 5-Chloro-4,7-dimethylbenzo[b]thiophen-3(2H)-one; 3(2H)-Benzothiophenone, 5-chloro-4,7-dimethyl-; 5-Chloro-4,7-dimethyl-2,3-dihydro-1-benzothiophen-3-one; 5-Chloro-4,7-dimethyl-2,3-dihydrobenzo[b]thiophen-3-one
EINECS	201-423-5

Quality Control

Our production of 5-Chloro-4,7-Dimethylbenzo[B]Thiophen-3(2H)-One adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The material is manufactured under controlled conditions and undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to confirm identity and purity. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting all critical quality attributes. We support compliance with global regulatory frameworks, including REACH.

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 and incompatible materials. For long-term storage, consider storing 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%

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