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5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene 

CAS Number 214493-03-5

Chemistry Building Blocks, Dibromo Monomers, Heterocyclic Building Blocks, Materials, Monomers


Product Code B1551-LT-1g
Price £280 ex. VAT

An alkylated bithiophene building block with two bromo-functional groups

A bithiophene derivatives for semiconducting oligomer/polymer synthesis in application of OFETs and OSCs


Specifications | MSDS | Literature and Reviews


5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene (CAS number 214493-03-5) is a derivative of bithiophene with two hexyl groups at 4,4'-positions and two bromine group at 5,5'-positions, allowing further functionalization as well as gaining excellent solubility. It is facile for synthesising thiophene oligomer/polymer and block copolymer/small molecules with other building blocks such as perylene, triphenylamine and carbazoles.

5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene has a well-defined structure with two thiophene units joined at 2,2'-positions and two hexyl groups being away from each other at 4,4'-positions. This is particularly useful when certain desired structure conformation to be achieved or film morphology issues to be addressed, unlike the random coupling reactions between mono-thiophenes.

General Information


CAS Number 214493-03-5
Chemical Formula C20H28Br2S2
Full Name 5,5'-dibromo-4,4'-dihexyl-2,2'-bithiophene
Molecular Weight 492.37 g/mol
Synonyms 2-bromo-5-(5-bromo-4-hexylthiophen-2-yl)-3-hexylthiophene
Classification / Family thiophene derivatives, Semiconductor synthesis intermediates, OLED, OFETs, organic photovoltaics

Chemical Structure


5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene CAS 214493-03-5
5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene chemical structure, CAS 214493-03-5

Product Details


Purity >98% (1H NMR)
Boiling Point Tb > 468.8±40.0 °C at 760 mmHg
Appearance Yellow liquid
Relative density 1.4±0.1 g/cm3

MSDS Documentation


5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene5,5'-Dibromo-4,4'-dihexyl-2,2'-bithiophene MSDS Sheet

Literature and Reviews


  1. Thiophene in conducting polymers: synthesis of poly(thiophene)s and other conjugated polymers containing thiophenes, for application in polymer solar cell, F. Livi et al., Top. Heterocycl. Chem., 39, 203–226(2015); DOI: 10.1007/7081_2014_128.
  2. Nanoscale correlation between exciton dissociation and carrier transport in silole-containing cyclopentadithiophene-based bulk heterojunction films, J.-H. Huang et al., J. Phys. Chem. C, 115, 2398–2405(2011); DOI: 10.1021/jp1090894.
  3. Polymer for electronics and spintronics, P. Bujak et al., Chem. Soc. Rev., 42, 8895–8999(2013); DOI: 10.1039/c3cs60257e.

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