Description

2-Bromo-7-Chlorobenzo[B]Thiophene is a high-purity halogenated heterocyclic building block of significant importance in advanced organic synthesis. This compound serves as a critical intermediate for the development of novel pharmaceuticals, agrochemicals, and functional materials. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for candidates targeting central nervous system (CNS) disorders and oncology.
• Agrochemical Research: Used in the development of new-generation herbicides, fungicides, and insecticides, leveraging the bioactivity of the benzothiophene core.
• Material Science: Serves as a monomer or building block for organic semiconductors, conductive polymers, and liquid crystal materials.
• Chemical Synthesis: Versatile substrate for cross-coupling reactions (e.g., Suzuki, Stille) and functional group transformations in medicinal and process chemistry.
• Dye & Pigment Industry: Intermediate for synthesizing specialized dyes and pigments with specific light-absorption properties.

Basic Information

Product Name	2-Bromo-7-Chlorobenzo[B]Thiophene
CAS No.	1782669-70-8
Molecular Formula	C8H4BrClS
Molecular Weight	247.54 g/mol
Synonyms	7-Chloro-2-bromobenzo[b]thiophene; 2-Bromo-7-chlorobenzo[b]thiophene; 2-Bromo-7-chloro-1-benzothiophene; 2-Bromo-7-chlorobenzo[b]thiophene; 2-Bromo-7-chloro-benzo[b]thiophene; Benzo[b]thiophene, 2-bromo-7-chloro-; 1782669-70-8
EINECS	Contact for details

Quality Control

Our 2-Bromo-7-Chlorobenzo[B]Thiophene is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality commitment ensures the material meets the stringent requirements for research and scale-up applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents. For long-term storage, consider storing under an inert atmosphere.

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.