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Ethyl 2,5-dibromothiophene-3-carboxylate

CAS Number 289470-44-6

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


Product Code B751-1g
Price £130 ex. VAT

Specifications | MSDS | Literature and Reviews


Ethyl 2,5-dibromothiophene-3-carboxylate is a thiophene carboxylic acid derivatives. Carboxylate group is electron withdrawn to lower the electron density at the thiophene ring.

Ethyl 2,5-dibromothiophene-3-carboxylate has been used for the synthesis of medium to low bandgap highly efficient polymer semiconductors, i.e. PTQ2 and PBDB-TF-T1 (T1).


CAS Number 289470-44-6
Chemical Formula C7H6Br2O2 S
Molecular Weight 314 g/mol
Full Name Ethyl 2,5-dibromothiophene-3-carboxylate
Synonyms 2,5-dibromo-3-ethylthiophene-carbon dioxide
Classification / Family Thiophene derivatives, Organic semiconducting materials intermediates, Semiconductor Synthesis, Organic Photovoltaics

Chemical Structure


Ethyl-2-5-dibromothiophene-3-carboxylate chemical structure, 289470-44-6
Chemical structure of ethyl 2,5-dibromothiophene-3-carboxylate, CAS 289470-44-6

Product Details


Purity 97%
Melting Point 35 °C - 37 °C
Appearance Yellow brownish powder/crystals

MSDS Documentation


Ethyl 2,5-dibromothiophene-3-carboxylate  MSDS sheetEthyl 2,5-dibromothiophene-3-carboxylate MSDS sheet

Literature and Reviews


  1. Highly Efficient All-Polymer Solar Cells Enabled by Random Ternary Copolymer Acceptors with High Tolerance on Molar Ratios, Y. Wu et al., RRL Solar, 4 (11), 2000409 (2020); DOI: 10.1002/solr.202000409.
  2. Achieving Over 15% Efficiency in Organic Photovoltaic Cells via Copolymer Design, Y. Cui et al., Adv. Mater., 31 (14), 1808356 (2019); DOI: 10.1002/adma.201808356.
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