Description

3,6-Dichloro-Benzo[B]Thiophene-2-Carbonyl Chloride is a high-purity, reactive chemical intermediate essential for advanced organic synthesis. Its value lies in its role as a versatile building block for constructing complex heterocyclic systems, particularly in the development of active pharmaceutical ingredients (APIs) and specialty agrochemicals. This compound is critically needed by research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, anti-inflammatory agents, and other therapeutic small molecules.
• Agrochemical Synthesis: Serves as a core building block for developing new-generation herbicides, fungicides, and insecticides with enhanced efficacy and selectivity.
• Material Science Research: Used in the creation of organic semiconductors, conductive polymers, and other functional materials due to the benzo[b]thiophene core.
• Chemical Research & Development: Employed in academic and industrial R&D for exploring new organic reactions and synthesizing complex heterocyclic libraries for screening.
• Dye and Pigment Intermediate: Acts as a starting material for synthesizing specialized dyes and pigments with specific light-absorption properties.

Basic Information

Product Name	3,6-Dichloro-Benzo[B]Thiophene-2-Carbonyl Chloride
CAS No.	34576-85-7
Molecular Formula	C9H3Cl3OS
Molecular Weight	265.54 g/mol
Synonyms	3,6-Dichlorobenzo[b]thiophene-2-carbonyl chloride; 2,5-Dichlorothianaphthene-3-carbonyl chloride; 3,6-Dichloro-1-benzothiophene-2-carbonyl chloride; 3,6-Dichlorobenzo[b]thiophene-2-carboxylic acid chloride; 3,6-Dichloro-1-benzothiophene-2-carboxylic acid chloride; 3,6-Dichloro-2-benzothiophenecarbonyl chloride; 3,6-Dichlorobenzo[b]thiophene-2-COCl
EINECS	Contact for details

Quality Control

Our 3,6-Dichloro-Benzo[B]Thiophene-2-Carbonyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high chemical purity and identity confirmation. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our commitment to quality ensures reliable performance in your most demanding synthetic applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat, open flames, and incompatible materials such as strong bases, alcohols, and amines.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Melting Point	Contact for details
Residue on Ignition	≤ 0.1%

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