Description

Thieno[3,2-B]Thiophene-3,6-Dicarboxylic Acid is a high-purity, multifunctional organic building block critical for advanced material synthesis. This compound is valued for its rigid, fused heterocyclic structure, which serves as a key precursor in the development of novel electronic and optoelectronic materials. It is primarily sought by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular architectures.

Application

• Organic Semiconductor Precursor: A core monomer for synthesizing conjugated polymers and small molecules used in Organic Field-Effect Transistors (OFETs) and Organic Photovoltaics (OPVs).
• Pharmaceutical Intermediate: Serves as a sophisticated scaffold in medicinal chemistry for the development of new active pharmaceutical ingredients (APIs) with potential therapeutic applications.
• Agrochemical Synthesis: Used in the research and production of advanced crop protection agents and herbicides, leveraging its unique heterocyclic system.
• Ligand and Catalyst Development: Employed to create novel chelating ligands for metal-organic frameworks (MOFs) and homogeneous catalysis.
• Dye and Pigment Chemistry: Acts as a key intermediate for producing high-performance dyes, pigments, and fluorescent markers.
• Material Science Research: A valuable reagent for academic and industrial research into new functional materials with tailored electronic properties.

Basic Information

Product Name	Thieno[3,2-B]Thiophene-3,6-Dicarboxylic Acid
CAS No.	1805838-30-5
Molecular Formula	C8H4O4S2
Molecular Weight	228.25 g/mol
Synonyms	3,6-Thieno[3,2-b]thiophenedicarboxylic Acid; Thieno[3,2-b]thiophene-3,6-dicarboxylic acid; TTDC; 3,6-Dicarboxythieno[3,2-b]thiophene; TTDCA; Thienothiophene dicarboxylic acid; 1,3-Thieno[3,2-b]thiophene-5,7-dicarboxylic acid (alternative numbering)
EINECS	Contact for details

Quality Control

Our Thieno[3,2-B]Thiophene-3,6-Dicarboxylic Acid is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and batch-to-batch consistency suitable for demanding R&D and scale-up applications. A detailed Certificate of Analysis (COA) is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 3.0%

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