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Product Code B791-1g
Price £250 ex. VAT

Specifications | MSDS | Literature and Reviews


BT-C14-2Br, namely 5,5′-Dibromo-4,4′-ditetradecyl-2,2′-bithiophene, is a bithiophene derivate with unbranched tetradecyl alkyl (C14) chains. C14 side chains have tendency to self-aggregate in the mixture of solvent/non-solvent, i.e. chloroform and toluene.

BT-C14-2Br is normally used as a building block for the synthesis of PBTTT-C14.

General Information


CAS Number 888491-16-5
Chemical Formula C36H60Br2S2
Full Name 5,5′-Dibromo-4,4′-ditetradecyl-2,2′-bithiophene
Molecular Weight 716.80  g/mol
Synonyms 2,2'-dibromo-3,3'-bis(n-tetradecyl)-5,5'-bithiophene
Classification / Family Bithiophene, Semiconductor synthesis intermediates, Low band gap polymers, OFETs, Organic photovoltaics, polymer solar cells

Chemical Structure


5,5′-Dibromo-4,4′-ditetradecyl-2,2′-bithiophene chemical structure
Chemical structure of 5,5′-Dibromo-4,4′-ditetradecyl-2,2′-bithiophene (BT-C14-2Br), CAS 888491-16-5

Product Details


Purity >98% (1H NMR in CDCl3)
Melting Point 64°C - 68 °C
Appearance Off-white crystalline powder

MSDS Documentation


5,5′-Dibromo-4,4′-ditetradecyl-2,2′-bithiophene MSDSBT-C14-2Br MSDS Sheet

Literature and Reviews


  1. High performance light emitting transistors, E. Namdas et al., Appl. Phys. Lett. 92, 183304 (2008); DOI: 10.1063/1.2920436.
  2. High Carrier Mobility Polythiophene Thin Films: Structure Determination by Experiment and Theory, D. DeLongchamp et al., Adv. Mater., 19, 833–837 (2007); DOI: 10.1002/adma.200602651.
  3. Semiconducting Thienothiophene Copolymers: Design, Synthesis, Morphology, and Performance in Thin-Film Organic Transistors, I. McCulloch et al., Adv. Mater., 21, 1–19(2009); DOI: 10.1002/adma.200801650.
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