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 B881-1g
Price £370 ex. VAT

Quality assured

Expert support

Volume discounts

Worldwide shipping

Fast and secure


High-purity 3TCN-HD-2Br available to buy online

Terthiophene intermediate with electron deficient cyano-group


3TCN-HD-2Br, or 5,5’’-Dibromo-4,4’’-bis(2-hexyldecyl)-[2,2’:5’,2’’-terthiophene]-3’-carbonitrile, is a terthiophene intermediate. 3TCN-HD-2Br has 2-hexyldecyl branched side chains on each of the two end thiophenes, and an electron deficient cyano (CN) group on the middle thiophene. This cyano-group can promote intermolecular interaction, improving the film crystallinity of the targeted materials, i.e. polymers, and giving appropriate miscibility when blending with non-fullerene acceptors (NFAs).

Part of our range of monomers, we have high purity (>98%) 3TCN-HD-2Br available to buy online in 1 g or 5 g quantities. Qualifying orders ship free.

General Information

CAS Number N/A
Chemical Formula C45H69Br2NS3
Full Name 5,5’’-Dibromo-4,4’’-bis(2-hexyldecyl)-[2,2’:5’,2’’-terthiophene]-3’-carbonitrile
Molecular Weight 880.04 g/mol
Synonyms 3THDCN-2Br
Classification / Family Terthiophene, semiconductor synthesis intermediates, low band gap polymers, OFETs, organic photovoltaics, polymer solar cells

Chemical Structure

3TCN-HD-2Br chemical structure
Chemical structure of 5,5’’-Dibromo-4,4’’-bis(2-hexyldecyl)-[2,2’:5’,2’’-terthiophene]-3’-carbonitrile (3TCN-HD-2Br)

Product Details

Purity > 98% (1H NMR in CDCl3)
Melting Point N/A
Appearance Yellow oil

MSDS Documentation

3TCN-HD-2Br MSDS3TCN-HD-2Br MSDS Sheet

Literature and Reviews

  1. Polythiophenes for organic solar cells with efficiency surpassing 17%, X. Yuan et al., Joule, 6 (3), 647-661 (2022); DOI: 10.1016/j.joule.2022.02.006.
  2. Achieving 16% Efficiency for Polythiophene Organic Solar Cells with a Cyano-Substituted Polythiophene, X. Yuan et al., Adv. Funct. Mater., 2201142 (2022); DOI: 10.1002/adfm.202201142.
Return to the top