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 office.
Join the Team About Ossila Contact Us | How to Order Shipping |Log In Create Account| Worldwide, £ GBP   Flag

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.

BT-C12-2Br CAS 753470-95-0
Product Code B891-1g
Price £170 ex. VAT
£ GBP

How to Order | Shipping

Bithiophene derivate, BT-C12-2Br

Commonly used for the synthesis of polymer semiconductors PBTTT-C12 and PQT12

Specifications | MSDS | Literature and Reviews

BT-C12-2Br, or 5,5′-Dibromo-4,4′-didodecyl-2,2′-bithiophene (CAS number 753470-95-0), is a bithiophene derivate with unbranched dodecyl alkyl (C12) side chains. Dodecyl alkyl chains can not only enhance solubility of the targeted semiconducting polymers, but also promote film morphology with better intermolecular packing and π–π stacking.

BT-C12-2Br has been widely used for the synthesis of polymer semiconductors PBTTT-C12 and PQT12. These can be used to create organic field-effect transistors (OFETs) with high charge mobilities.

We stock high purity (>98%) BT-C12-2Br as part of our range of monomers. Order online or request a quote today.

Bithiophene building block

Bithiophene building block

for the synthesis of OLED and organic photovoltaic materials

753470-95-0 Worldwide shipping

Worldwide shipping

Quick and reliable shipping

Capped with bromides

Capped with bromides

for facile coupling reactions

High purity 753470-95-0

High purity

>98% Purity

General Information

CAS Number 753470-95-0
Chemical Formula C32H52Br2S2
Full Name 5,5′-Dibromo-4,4′-didodecyl-2,2′-bithiophene
Molecular Weight 660.69 g/mol
Synonyms 2,2'-dibromo-3,3'-bis(n-dodecyl)-5,5'-bithiophene
Classification / Family Bithiophene, semiconductor synthesis intermediates, low band gap polymers, OFETs, organic photovoltaics, polymer solar cells

Chemical Structure

BT-C12-2Br chemical structure
Chemical structure of 5,5′-Dibromo-4,4′-didodecyl-2,2′-bithiophene (BT-C12-2Br), CAS 753470-95-0

Product Details

Purity >98% (1H NMR in CDCl3)
Melting Point 56 °C - 60 °C
Appearance Yellow flakey solid

MSDS Documentation

BT-C12-2Br MSDSBT-C12-2Br MSDS Sheet

Literature and Reviews

  1. High-Performance Semiconducting Polythiophenes for Organic Thin-Film Transistors, B. Ong et al., J. Am. Chem. Soc., 126, 11, 3378–3379 (2004); DOI: 10.1021/ja039772w.
  2. Factors Governing Intercalation of Fullerenes and Other Small Molecules Between the Side Chains of Semiconducting Polymers Used in Solar Cells, N. Miller et al., Adv. Energy. Mater., 2 (10), 1208-1217 (2012); DOI: 10.1002/aenm.201200392.
  3. Remarkable Suppression of Vibrational Relaxation in Organic Semiconducting Polymers by Introducing a Weak Electron Donor for Improved NIR-II Phototheranostics, C. Yin et al., Adv. Funct. Mater., 31 (47), 2106575 (2021); DOI: 10.1002/adfm.202106575.

Return to the top