Thieno[2,3-b]thiophene
Thieno[2,3-b]thiophene (CAS: 250-84-0) is a heterocyclic organic compound with the molecular formula C6H4S2 and a molecular weight of 140.23 g/mol. Characterised by its fused thiophene rings, it serves as a key building block in materials science and organic electronics. Its applications span the synthesis of advanced polymers and optoelectronic devices.
- Synonyms
- Thieno[2,3-b]thiophene
![Thieno[2,3-b]thiophene (C6H4S2) — chemical structure, CAS 250-84-0; Materials Science, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F250-84-0.png&w=3840&q=75)
Organic Electronics
Thieno[2,3-b]thiophene is utilised in the development of organic semiconductors for applications such as organic field-effect transistors (OFETs) and organic photovoltaic cells (OPVs).
Materials Science
It acts as a versatile monomer or building block for synthesising novel conjugated polymers and materials with tailored electronic and optical properties.
Synthetic Reagent
This compound is employed as a synthetic tool in organic chemistry for constructing complex molecular architectures and functional molecules.
| Molecular weight | 140.23 |
|---|---|
| Empirical formula | C6H4S2 |
| Assay | 95% |
| Density | 1.326 g/cm3 at 25 °C |
| Refractive index | n20/D 1.668 |
Hazard statements
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 93 °C / 199.4 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-36/37/38 |
| Safety statements (S) | 26 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Thieno[2,3-b]thiophene used for?
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Thieno[2,3-b]thiophene is primarily used in materials science and organic electronics as a building block for synthesising novel conjugated polymers and organic semiconductors for devices like OFETs and OPVs.
What are the CAS number and chemical formula for Thieno[2,3-b]thiophene?
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The CAS number is 250-84-0 and the empirical formula is C6H4S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Thieno[2,3-b]thiophene with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
How should Thieno[2,3-b]thiophene be handled safely?
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Handle with appropriate personal protective equipment including eyeshields, faceshields, and gloves. Ensure adequate ventilation and use a suitable respirator if needed, as it can cause respiratory irritation (H335), skin irritation (H315), eye irritation (H319), and is harmful if swallowed (H302).
How is Thieno[2,3-b]thiophene packed and shipped internationally?
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This compound is typically packed in UN 3334 compliant packaging for safe transportation and is exported globally by Tech Serve Solutions.
How can I request a sample or quote for Thieno[2,3-b]thiophene?
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Please contact our sales team via the website or by phone to request a sample or a quotation for Thieno[2,3-b]thiophene.
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