Description

Thieno[3,2-b]thiophene is a high-purity fused heterocyclic compound that serves as a critical building block in advanced organic synthesis. This specialized intermediate is valued for its unique electronic properties and rigid, planar structure, which are essential for developing high-performance materials. It is primarily sought by research institutions and manufacturers in the organic electronics, pharmaceutical, and agrochemical sectors for creating novel functional molecules.

Application

• Organic Semiconductor Development: A key precursor for p-type organic field-effect transistors (OFETs) and hole-transport materials in electronic devices.
• Pharmaceutical Intermediates: Used in the synthesis of complex drug candidates and bioactive molecules due to its stable heterocyclic core.
• Agrochemical Synthesis: Serves as a building block for creating novel pesticides and herbicides with enhanced efficacy.
• Material Science Research: Employed in the development of conductive polymers, organic light-emitting diodes (OLEDs), and non-linear optical materials.
• Ligand and Catalyst Design: Utilized to construct sophisticated ligands for catalysis and metal-organic frameworks (MOFs).

Basic Information

Product Name	Thieno[3,2-b]thiophene
CAS No.	251-41-2
Molecular Formula	C6H4S2
Molecular Weight	140.22 g/mol
Synonyms	Thieno[3,2-b]thiophene; Thieno(3,2-b)thiophene; 3,2-b-Thienothiophene; Benzo[1,2-c:4,5-c']bisthiofuran; 2,3-Dihydrothieno[3,2-b]thiophene (parent compound reference); T34BT; TT
EINECS	205-969-5

Quality Control

Our Thieno[3,2-b]thiophene is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques including HPLC, GC, and NMR to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place. Recommended long-term storage temperature is 2-8°C. Allow the container to reach ambient temperature before opening to minimize moisture condensation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 98.0%
Melting Point	95 - 99 °C
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.