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Product Code B351-1g
Price £370 ex. VAT

BDTT, for applications in OFETs, OLED, PLED and OPV

For the synthesis of small molecules and low band gap semiconducting polymers


Specifications | MSDS | Literature and Reviews


2,6-Bis(trimethytin)-4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b’]dithiophene, or BDTT for short (CAS number 1352642-37-5), has been used for the synthesis of small molecules and low band gap polymer semiconductors such as PTB7, PCE10 and PBDB-T (PCE12) for OFETs, OLED, PLED, OPV applications.

Bearing two ethylhexyl alkyl side chains, with fused thiophenes and thiophenes as electron-rich pendants, 2,6-bis(trimethytin)-4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b’]dithiophene offers good solubility for synthesis of polymer chains. 

This monomer has been used in our own lab for the synthesis of PCE10 and PBDB-T (PCE12).

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

A monomer for PTB7, PCE10, and PCE12

Benzodithiophene building block

Benzodithiophene building block

For semiconductors, OFETs, and solar cells

Worldwide shipping for 1352642-37-5

Worldwide shipping

Quick and reliable shipping

High purity 1352642-37-5

High purity

>98% High purity

General Information


CAS Number 1352642-37-5
Chemical Formula C40H58S4Sn2
Molecular Weight 904.57 g/mol
Synonyms BDT, BDTT
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


1352642-37-5, BDTT, chemical structure 2,6-Bis(trimethytin)-4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b’]dithiophene
Chemical structure of BDTT, CAS 1352642-37-5

Product Details


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

MSDS Documentation


BDTT MSDSBDTT MSDS Sheet

Literature and Reviews


  1. Enhanced performance for organic bulk heterojunction solar cells by cooperative assembly of ter(ethylene oxide) pendants, L. Chen et al., Polym. Chem., 5, 4480-4487 (2014); DOI: 10.1039/C4PY00095A.
  2. Breaking the 10% Efficiency Barrier in Organic Photovoltaics: Morphology and Device Optimization of Well-Known PBDTTT Polymers, Adv. Energy Mater., 6, 1502529 (2016), S. Zhang et al., DOI: 10.1002/aenm.201502529.
  3. 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.
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