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Product Code B521-500mg
Price £500 ex. VAT

High purity BDTT-F-Sn, for applications in highly efficient OSCs and OPVs

For the synthesis of small molecular donors and low band gap semiconducting polymers


Specifications | MSDS | Literature and Reviews


2,6-bis(trimethytin)-4,8-bis(5-(2-ethylhexyl)-4-fluorothiophen-2-yl)benzo[1,2-b:4,5-b’]dithiophene (BDTT-FS-n), CAS number 1514905-25-9, is an electron-rich building block used for the synthesis of either small molecular donors or low band-gap polymer semiconductors (like PBDB-T-F) for highly-efficient OSCs and OPV applications.

Bearing two ethylhexyl side chains, with fused benzodithiophenes and thiophenes as electron-rich pendants, BDTT-F-Sn offers good solubility for the targeted materials. The introduction of the fluoro atoms on the side thiophene rings can also lower the HOMO/LUMO energy levels of the desired polymers.

Available to purchase up to 25 g. If you are ordering the item with quantity over 5 g please contact our customer care team for a lead time.

Capped with trimethyltin

Capped with trimethyltin

for facil coupling reactions

Worldwide shipping for 1514905-25-9

Worldwide shipping

Quick and reliable shipping

Fluorinated building block

Benzodithiophene building block

For semiconductors, OFETs, and solar cells

High purity 1514905-25-9

High purity

>98% High purity

General Information


CAS Number 1514905-25-9
Chemical Formula C40H56F2S4Sn2
Molecular Weight 940.55 g/mol
Full Name 2,6-bis(trimethytin)-4,8-bis(5-(2-ethylhexyl)-4-fluorothiophen-2-yl)benzo[1,2-b:4,5-b’]dithiophene
Synonyms
  • BDTTDFSn
  • 4,8-Bis(5-(2-ethylhexyl)-4-fluorothiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene-2,6-diyl)bis(trimethylstannane)
Classification / Family Thiophene, Fused thiophene, Benzo-dithiophene heterocylic aromatics, Five-membered ring, Semiconductor synthesis intermediates, Low band-gap polymers, OFETs, Organic photovoltaics, Polymer solar cells

Chemical Structure


BDTT-F-Sn, 1514905-25-9
Chemical structure of BDTT-F-Sn, CAS 1514905-25-9

Product Details


Purity >98% (by 1H-NMR)
Melting Point N/A
Appearance Light yellow crystals

MSDS Documentation


BDTTDFSn MSDSBDTTDFSn MSDS Sheet

Literature and Reviews


  1. Over 14% Efficiency in Polymer Solar Cells Enabled by a Chlorinated Polymer Donor, S. Zhang et al., Adv.Mater., 30, 1800868 (2018); DOI: 10.1002/adma.201800868.
  2. Design of a New Small‐Molecule Electron Acceptor Enables Efficient Polymer Solar Cells with High Fill Factor, S. Li et al., Adv.Mater., 29, 1704051 (2017); DOI: 10.1002/adma.201704051.
  3. A High-Efficiency Organic Solar Cell Enabled by the Strong Intramolecular Electron Push–Pull Effect of the Nonfullerene Acceptor, W. Li et al., Adv.Mater., 30, 1707170 (2017); DOI: 10.1002/adma.201707170.
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