FREE shipping to on qualifying orders when you spend or more, processed by Ossila BV. All prices ex. VAT. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in or change country. Orders to the EU are processed by our EU subsidiary.

It looks like you are using an unsupported browser. You can still place orders by emailing us on info@ossila.com, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.


Product Code B401-1g
Price $194 ex. VAT

Quality assured

Expert support

Volume discounts

Worldwide shipping

Fast and secure


1,3-Dibromo-5-octyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione, also referred to as TPD-C8, is electron-deficient and used as a monomer for the synthesis of low band-gap polymer semiconductors in OPV and OFET applications.

General Information

CAS Number 566939-58-0
Chemical Formula C14H17Br2NO2S
Molecular Weight 423.16 g/mol
Synonyms TPD-C8, 2,5-Dibromo-N-n-octyl-3,4-thiophenedicarboximide
Classification / Family Thiophene, Heterocyclic five-membered ring, Organic semiconducting materials, Semiconductor Synthesis, Low band gap polymers, OFETs, OLED, Organic Photovoltaics, Polymer Solar Cells

Chemical Structure

TPD-C8, 1,3-Dibromo-5-octyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione, 566939-58-0
Chemical structure of 1,3-Dibromo-5-octyl-4H-thieno[3,4-c]pyrrole-4,6(5H)-dione

Product Details

Purity >99%
Melting Point 105 °C - 109 °C
Appearance Orange powder/crystals

MSDS Documentation

TPD-C8 MSDSTPD-C8 MSDS Sheet

Literature and Reviews

  1. Alkoxyl Side Chain Substituted Thieno[3,4-c]pyrrole-4,6-dione To Enhance Photovoltaic Performance with Low Steric Hindrance and High Dipole Moment, Macromolecules, 49 (16), pp 5788–5795 (2016); DOI: 10.1021/acs.macromol.6b00927.
  2. Synthesis of new D-A polymers containing disilanobithiophene donor and application to bulk heterojunction polymer solar cells, M. Nakashima et al, Polymer J., 47, 733–738 (2015); doi:10.1038/pj.2015.61.
  3. Low band gap dithienogermolodithiophene copolymers with tunable acceptors and side-chains for organic solar cells, H. Zhong et al., J. Mater. Chem. A, 1, 14973-14981 (2013); DOI: 10.1039/C3TA13778C.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

Return to the top