Description

5-Bromo-3,4-Dimethylthieno[2,3-B]Thiophene-2-Carboxaldehyde is a high-purity, multi-functional heterocyclic building block of significant interest in advanced organic synthesis. Its unique fused thiophene core and reactive aldehyde group make it a critical intermediate for constructing complex molecular architectures. This compound is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and materials science sectors for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly for central nervous system (CNS) and antiviral therapies.
• Agrochemical Synthesis: Used in the development of new-generation herbicides, fungicides, and insecticides due to its bioactive thiophene scaffold.
• Organic Electronic Materials: Acts as a core building block for π-conjugated systems in organic semiconductors, OLEDs, and photovoltaic materials.
• Ligand and Catalyst Development: Employed in the preparation of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Chemical Research & Development: A versatile starting material for heterocyclic chemistry, enabling the exploration of new chemical space in academic and industrial labs.
• Dye and Pigment Synthesis: Utilized in the creation of specialized dyes and pigments with unique optical properties.

Basic Information

Product Name	5-Bromo-3,4-Dimethylthieno[2,3-B]Thiophene-2-Carboxaldehyde
CAS No.	175202-64-9
Molecular Formula	C9H7BrOS2
Molecular Weight	275.18 g/mol
Synonyms	5-Bromo-3,4-dimethylthieno[2,3-b]thiophene-2-carbaldehyde; 2-Formyl-5-bromo-3,4-dimethylthieno[2,3-b]thiophene; Thieno[2,3-b]thiophene-2-carboxaldehyde, 5-bromo-3,4-dimethyl-; 175202-64-9; 5-Bromo-3,4-dimethylthieno(2,3-b)thiophene-2-carboxaldehyde; 5-Br-3,4-diMe-thieno[2,3-b]thiophene-2-CHO
EINECS	Contact for details

Quality Control

Every batch of 5-Bromo-3,4-Dimethylthieno[2,3-B]Thiophene-2-Carboxaldehyde is manufactured under strict quality management systems. We employ advanced analytical techniques including HPLC, GC-MS, NMR, and IR spectroscopy to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing batch-specific results are provided and available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its light-sensitive and easily oxidized nature, it is recommended to store the material under an inert atmosphere for long-term preservation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
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.