Description

2-Bromo-5-Chloro-3-Methylbenzo[B]Thiophene is a high-purity halogenated benzothiophene derivative, a crucial building block in advanced organic synthesis. This compound matters for its role as a versatile intermediate in the development of complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is needed by R&D chemists and process development scientists working on active pharmaceutical ingredients (APIs), crop protection agents, and novel materials.

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 Research: Used in the development of new-generation herbicides, fungicides, and insecticides, leveraging its halogenated benzothiophene core.
• Material Science: Serves as a precursor for organic semiconductors, liquid crystals, and other functional materials requiring a tailored heterocyclic architecture.
• Chemical Synthesis: Employed in cross-coupling reactions (e.g., Suzuki, Stille) and other metal-catalyzed transformations to construct complex polycyclic systems.
• Academic & Industrial R&D: A valuable reagent for methodological studies and the exploration of new chemical spaces in heterocyclic chemistry.

Basic Information

Product Name	2-Bromo-5-Chloro-3-Methylbenzo[B]Thiophene
CAS No.	175203-60-8
Molecular Formula	C9H6BrClS
Molecular Weight	277.57 g/mol
Synonyms	2-Bromo-5-chloro-3-methyl-1-benzothiophene; 3-Methyl-2-bromo-5-chlorobenzo[b]thiophene; Benzo[b]thiophene, 2-bromo-5-chloro-3-methyl-; 175203-60-8; 2-Bromo-5-chloro-3-methylbenzo[b]thiophene; 5-Chloro-2-bromo-3-methylbenzothiophene
EINECS	Contact for details

Quality Control

Our 2-Bromo-5-Chloro-3-Methylbenzo[B]Thiophene is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and identity confirmation. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all relevant specifications. Our quality commitment supports applications requiring traceability and consistency in fine chemical synthesis.

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 heat, sparks, and open flame. This material is light-sensitive (store away from light).

Specification

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