Description

Thieno[3,4-B]Thiophene-4-Carbaldehyde is a specialized heterocyclic aldehyde building block of significant interest in advanced materials research and pharmaceutical development. Its unique fused thiophene structure makes it a critical precursor for synthesizing complex organic semiconductors and functional polymers. This high-purity intermediate is essential for R&D chemists and process engineers working in organic electronics, photovoltaics, and medicinal chemistry.

Application

• Organic Semiconductor Synthesis: A key monomer for constructing donor-acceptor polymers and small molecules used in Organic Field-Effect Transistors (OFETs) and Organic Photovoltaics (OPVs).
• Pharmaceutical Intermediates: Serves as a versatile building block for the development of novel active pharmaceutical ingredients (APIs) with thiophene-based scaffolds.
• Functional Dyes and Pigments: Used in the synthesis of advanced chromophores and pigments for specialized optical applications.
• Ligand and Catalyst Development: Employed in the preparation of novel ligands for catalysis and metal-organic frameworks (MOFs).
• Material Science Research: A fundamental reagent for academic and industrial research into new conductive and electroactive materials.

Basic Information

Product Name	Thieno[3,4-B]Thiophene-4-Carbaldehyde
CAS No.	25674-36-6
Molecular Formula	C7H4OS2
Molecular Weight	168.23 g/mol
Synonyms	Thieno[3,4-b]thiophene-4-carboxaldehyde; 4-Formylthieno[3,4-b]thiophene; TTCA; Thienothiophene-4-carbaldehyde; 4-Thieno[3,4-b]thiophenecarboxaldehyde; 25674-36-6; Thieno(3,4-b)thiophene-4-carboxaldehyde
EINECS	Contact for details

Quality Control

Our Thieno[3,4-B]Thiophene-4-Carbaldehyde is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity for research and development applications. Each lot is analyzed via modern analytical techniques including HPLC, GC, and NMR to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C) under an inert atmosphere to prevent oxidation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Yellow to brown crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details

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