Description

4-Bromobenzo[B]Thiophene is a versatile brominated heterocyclic compound that serves as a critical synthetic intermediate in advanced organic chemistry. Its value lies in its ability to act as a key building block for constructing complex molecular architectures, particularly in the development of pharmaceuticals and functional materials. This high-purity intermediate is essential for research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries who require reliable, high-quality raw materials for synthesis and scale-up.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing the benzothiophene scaffold which is prevalent in therapeutic agents.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides, leveraging its heterocyclic structure for bioactivity.
• Material Science Research: Serves as a building block for organic electronic materials, such as organic light-emitting diodes (OLEDs) and semiconductors, due to its electron-rich thiophene core.
• Ligand and Catalyst Development: Employed in the creation of specialized ligands for transition metal catalysis and organocatalysis.
• Chemical Research & Development: A fundamental reagent for method development in cross-coupling reactions (e.g., Suzuki, Stille) and functional group transformations in academic and industrial R&D settings.

Basic Information

Product Name	4-Bromobenzo[B]Thiophene
CAS No.	5118-13-8
Molecular Formula	C8H5BrS
Molecular Weight	213.09 g/mol
Synonyms	4-Bromobenzothiophene; 4-Bromobenzo[b]thiophene; 4-Bromo-1-benzothiophene; Benzo[b]thiophene, 4-bromo-; 4-Bromobenzobthiophene; 4-Bromo-benzobthiophene; 4-BBT
EINECS	Contact for details

Quality Control

Our 4-Bromobenzo[B]Thiophene is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. The compound is light-sensitive and should be handled under appropriate conditions to maintain 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.