Poly(3-decylthiophene-2,5-diyl)
Poly(3-decylthiophene-2,5-diyl) (CAS: 110851-65-5) is a π-conjugated polymer with the linear formula (C14H22S)n. It exhibits semiconducting properties and is known for its role in organic electronics. With an average molecular weight around 30,000-42,000 g/mol, this black polymer is utilised in applications such as conductive polymer electrodes, chemical sensors, and light-emitting diodes.
- IUPAC
- P3DT-RR,P3DT
- Synonyms
- (C14H22S)n

Organic Electronics
This polymer serves as a key component in organic and printed electronics, including applications in organic field-effect transistors (OFETs) and light-emitting diodes (OLEDs/PLEDs).
Sensors
Its conductive properties make it suitable for developing chemical and optical sensors, enabling the detection of various analytes through changes in its electrical or optical characteristics.
Electrochromic Devices
Poly(3-decylthiophene-2,5-diyl) can be employed in electrochromic devices, where its colour changes reversibly upon the application of an electrical potential.
Battery Technology
It finds application as a material for rechargeable battery electrodes, contributing to advancements in energy storage solutions.
| Linear formula | (C14H22S)n |
|---|---|
| Colour | black |
| Application | Conducting polymer. Rechargeable battery electrodes, electrochromic devices, chemical and optical sensors, light-emitting diodes, microelectrical amplifiers, field-effect transistors and non-linear optical materials. |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Mol Wt | average Mn ~30,000average Mw ~42,000 |
|---|---|
| Fluorescence | λex 441 nm; λem 567 nm in chloroform |
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 are the primary uses of Poly(3-decylthiophene-2,5-diyl)?
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Poly(3-decylthiophene-2,5-diyl) is primarily used as a conducting polymer in rechargeable battery electrodes, electrochromic devices, chemical and optical sensors, light-emitting diodes, microelectrical amplifiers, field-effect transistors, and non-linear optical materials.
What is the CAS number and formula for Poly(3-decylthiophene-2,5-diyl)?
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The CAS number for Poly(3-decylthiophene-2,5-diyl) is 110851-65-5, and its linear formula is (C14H22S)n.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Poly(3-decylthiophene-2,5-diyl) with a specified average Mn of ~30,000 and average Mw of ~42,000. We do not represent this product as USP, BP, EP, or pharmaceutical grade.
What are the safety considerations for handling Poly(3-decylthiophene-2,5-diyl)?
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When handling Poly(3-decylthiophene-2,5-diyl), it is advised to use eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if necessary. The material has a WGK rating of 3 in Germany.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions exports a wide range of chemicals globally. Specific packing and shipping details for Poly(3-decylthiophene-2,5-diyl) will be provided upon inquiry, adhering to international shipping regulations.
How can I request a sample or quote for Poly(3-decylthiophene-2,5-diyl)?
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To request a sample or obtain a quote for Poly(3-decylthiophene-2,5-diyl), please contact our sales team via the website or directly by phone, providing your specific requirements and shipping details.
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