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Product Code B731-1g
Price £400 ex. VAT

Specifications | MSDS | Literature and Reviews


CDT-EH-Sn, namely 4,4-Bis(2-ethylhexyl)-2,6-bis(trimethylstannyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene, is the intermediate for the synthesis of low bandgap semiconducting polymers which are widely used in OLED, OPV and OFET devices.

4H-Cyclopenta[1,2-b:5,4-b']dithiophene (CDT) has electron rich bridged bithiophenes with a five member cyclopentadiene fused ring at its central core.

General Information


CAS Number 920504-00-3
Chemical Formula C31H54S2Sn2
Molecular Weight 728.3 g/mol
Full Name 4,4-Bis(2-ethylhexyl)-2,6-bis(trimethylstannyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene
Synonyms CDT26-2Sn
2,6-Bis(trimethyltin)-4,4-bis(2-ethylhexyl)-4H-cyclopenta[2,1-b:3,4-b']dithiophene
Classification / Family cyclopenta[2,1-b:3,4-b']dithiophene (CDT) derivatives, Organic semiconducting materials, Semiconductor Synthesis, Low band gap polymers, Organic Photovoltaics.

Chemical Structure


CDT-EH-Sn, 2,6-bis(trimethyltin)-4,4-bis(2-ethylhexyl)-4h-cyclopenta[2,1-b:3,4-b']dithiophene, CAS 920504-00-3
Chemical structure of CDT-EH-Sn, CAS 920504-00-3

Product Details


Purity 97%
Boiling Point N/A
Appearance Yellowish liquid

MSDS Documentation


CDT-EH-Sn MSDS SheetCDT-EH-Sn MSDS sheet

Literature and Reviews


  1. Photoconductivity of a Low-Bandgap Conjugated Polymer, C. Soci et al., Adv. Funct. Mater., 17, 632–636 (2007); DOI: 10.1002/adfm.200600199.
  2. Synthesis and Characterization of Bridged Bithiophene-Based Conjugated Polymers for Photovoltaic Applications: Acceptor Strength and Ternary Blends, C-H. Chen et al., Macromolecules, 43, 697–708 (2010); DOI: 10.1021/ma902206u.
  3. Panchromatic Conjugated Polymers Containing Alternating Donor/Acceptor Units for Photovoltaic Applications, Z. Zhu et al., Macromolecules, 40, 6, 1981–1986 (2007); DOI: 10.1021/ma062376o..
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