Description

3-Bromothieno[3,2-b]thiophene is a high-purity, specialized heterocyclic building block of significant interest in advanced materials research and pharmaceutical development. Its unique fused thiophene structure, functionalized with a bromine atom, makes it a versatile precursor for cross-coupling reactions and molecular engineering. This compound is primarily utilized by R&D chemists and process development scientists working in organic electronics, agrochemicals, and medicinal chemistry. We supply this critical intermediate with a focus on batch-to-batch consistency and reliable global logistics to support your innovation pipeline.

Application

• Organic Semiconductor Precursor: A key monomer for synthesizing conjugated polymers and small molecules used in Organic Field-Effect Transistors (OFETs) and Organic Photovoltaics (OPVs).
• Pharmaceutical Intermediate: Serves as a core scaffold in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders.
• Agrochemical Synthesis: Used in the development of new generation herbicides and fungicides with thiophene-based active ingredients.
• Ligand and Catalyst Development: Employed to create sophisticated ligands for transition metal catalysis and coordination chemistry.
• Material Science Research: Fundamental building block for exploring new π-conjugated systems with tailored optical and electronic properties.
• Chemical Synthesis: Versatile substrate for Suzuki, Stille, and other palladium-catalyzed cross-coupling reactions to construct complex molecular architectures.

Basic Information

Product Name	3-Bromothieno[3,2-b]thiophene
CAS No.	25121-83-9
Molecular Formula	C6H3BrS2
Molecular Weight	219.12 g/mol
Synonyms	3-Bromothieno[3,2-b]thiophene; 3-Bromothieno(3,2-b)thiophene; Thieno[3,2-b]thiophene, 3-bromo-; 3-Bromo-thieno[3,2-b]thiophene; 25121-83-9; AKOS005258213; BRN 121838; SCHEMBL15506295; DB-078993; FT-0775087
EINECS	Contact for details

Quality Control

Every batch of 3-Bromothieno[3,2-b]thiophene is manufactured and tested under a strict quality management system. We employ advanced analytical techniques including HPLC, GC-MS, and NMR to ensure identity, purity, and consistency meet the exacting standards required for research and scale-up. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with each shipment to support your quality assurance and regulatory documentation.

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 the container sealed to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residual Solvents (GC)	Complies with ICH guidelines

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