Description

5-Bromobenzo[B]Thiophen-3(2H)-One is a high-purity brominated heterocyclic building block essential for advanced organic synthesis. This compound serves as a critical intermediate in the development of novel pharmacologically active molecules and functional materials. It is primarily utilized by research institutions and industrial R&D departments in the pharmaceutical, agrochemical, and material science sectors for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of potential drug candidates, particularly for central nervous system (CNS) and oncology targets.
• Agrochemical Research: Used in developing new active ingredients for crop protection and pest management formulations.
• Material Science: Building block for organic semiconductors, conductive polymers, and advanced organic electronic materials.
• Chemical Synthesis: Versatile reagent for Suzuki-Miyaura and other palladium-catalyzed cross-coupling reactions to create complex biaryl structures.
• Dye & Pigment Industry: Intermediate in the production of specialized dyes and functional chromophores.
• Academic Research: Used in universities and research labs for methodological studies in heterocyclic and organobromine chemistry.

Basic Information

Product Name	5-Bromobenzo[B]Thiophen-3(2H)-One
CAS No.	163449-72-7
Molecular Formula	C8H5BrOS
Molecular Weight	229.09 g/mol
Synonyms	5-Bromobenzo[b]thiophen-3(2H)-one; 5-Bromo-3-oxo-2,3-dihydrobenzo[b]thiophene; 5-Bromo-2,3-dihydro-1-benzothiophen-3-one; 5-Bromobenzo[b]thiophen-3-one; 3(2H)-Benzothiophenone, 5-bromo-; 5-Bromo-2,3-dihydrobenzo[b]thiophen-3-one; 5-Bromobenzo[b]thiophene-3(2H)-one
EINECS	Contact for details

Quality Control

Our 5-Bromobenzo[B]Thiophen-3(2H)-One is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data including HPLC purity, NMR, and mass spectrometry confirmation. Certificates of Analysis (COA) are available for every batch upon request, detailing all relevant specifications.

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 sources and incompatible materials. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Off-white to light yellow 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.