2-Ethylhexyl 4,6-dibromo-3-fluorothieno[3,4-b]thiophene-2-carboxylate

Order Code: B361
Not in stock

Note: this monomer has been used in our own lab for the synthesis of PCE10 and PTB-7.

General Information

CAS number 1237479-38-7
Chemical formula C15H17Br2FO2S2
Molecular weight 472.23 g/mol
4,6-Dibromo-3-fluorothieno[3,4-b]thiophene-2-carboxylic acid 2-ethylhexyl ester
Classification / Family Thiophene, Fused thiophene, Semiconductor synthesis intermediates, Low band gap polymers, OFETs, Organic Photovoltaics, Polymer solar cells


Product Details

Purity >99% (by HPLC)
Melting point 37 - 41 °C
Appearance Off-white solid powder/crystals


Chemical Structure

PTB7 PCE10 monomer
Chemical structure of 2-Ethylhexyl 4,6-Dibromo-3-fluorothieno[3,4-b]thiophene-2-carboxylate. CAS No.: 1237479-38-7. Chemical formula: C15H17Br2FO2S2.



2-Ethylhexyl 4,6-Dibromo-3-fluorothieno[3,4-b]thiophene-2-carboxylate has been used for the synthesis low band gap polymer semiconductors such as PTB-7 and PCE10 (also called PTB7-Th or PBDTTT-EFT) for OFETs, OLED, PLED and OPV applications.


Literature and Reviews

  1. Study of Optical Properties and Molecular Aggregation of Conjugated Low Band Gap Copolymers: PTB7 and PTB7-Th, F. Bencheikh et al., J. Phys. Chem. C 2015, 119, 24643−24648 (2015); DOI: 10.1021/acs.jpcc.5b07803.
  2. Random terpolymer with a cost-effective monomer and comparable efficiency to PTB7-Th for bulk-heterojunction polymer solar cells, T. Jiang et al., Polym. Chem., 7, 926-932 (2016); DOI: 10.1039/C5PY01771H.
  3. Tuning nanoscale morphology using mixed solvents and solvent vapor treatment for high performance polymer solar cells, D. Wang et al., RSC Adv., 4, 48724–48733 (2014); DOI: 10.1039/c4ra09417d.


To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.