FREE shipping to on qualifying orders when you spend or more, processed by Ossila BV. All prices ex. VAT. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in or change country. Orders to the EU are processed by our EU office.

It looks like you are using an unsupported browser. You can still place orders by emailing us on info@ossila.com, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.


Product Code B871-250mg
Price $230 ex. VAT

IDTTB6-2Br, used to synthesise the ITIC non-fullerene acceptors

High quality and expert support available online


Specifications | MSDS | Literature and Reviews


2,8-Dibromo-6,12-dihydro-6,6,12,12-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′]dithiophene (IDTTB6-2Br), CAS number 2227361-27-3, is a useful, IDTT cored, intermediate for the synthesis of ITIC series non-fullerene acceptors such as ITIC, ITIC-2F, ITIC-DCl, ITIC-M, ITIC-Th, and ITIC-DM. Such acceptors can be used to create highly efficient polymer organic solar cells.

IDTTB6-2Br has the structure of a highly conjugated fused indacenodithieno[3,2-b]thiophene (IDTT) core with four hexylphenyl attachments oriented almost perpendicularly to the backbone. The introduction of four hexylphenyl groups improves the solubility and degree of crystallinity in the film state.

We stock high purity (>98%) IDTTB6-2Br and a range of other non-fullerene acceptor monomers for priority dispatch (lead times may apply for large quantities). Qualifying orders ship free.

Enabling facile coupling reaction

Enabling facile coupling reaction

with bromide end groups

Improving 2227361-27-3 solubility and crystallinity

Improving solubility and crystallinity

With four hexylphenyl side chain

Worldwide shipping for 2227361-27-3

Worldwide shipping

Quick and reliable shipping

Electron-rich building block

Electron-rich building block

Preparation of low bandgap non-fullerene acceptors (NFAs)

General Information


CAS Number 2227361-27-3
Chemical Formula C68H72Br2S4
Molecular Weight 1177.37 g/mol
Full Name 2,8-Dibromo-6,12-dihydro-6,6,12,12-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2′,3′-d′]-s-indaceno[1,2-b:5,6-b′]dithiophene
Synonyms 2,8-Dibromo-6,6,12,12-tetrakis(4-hexylphenyl)-6,12-dihydro-dithieno[2,3-d:2',3'-d']-s-indaceno[1,2-b:5,6-b']dithiophene
Classification / Family Indacenodithieno[3,2-b]thiophene (IDTT), Monomer and intermediates, None-fullerene acceptors (NFAs), NFA-OSCs, printing electronics

Chemical Structure


Chemical structure of IDTTB6-2Br, CAS 2227361-27-3
Chemical structure of IDTB6-2Br, CAS 1049034-71-0

Product Details


Purity >98% (by NMR)
Melting Point N/A
Appearance Yellow crystalline powder

MSDS Documentation


IDTB6-2Sn MSDSIDTTB6-2Br MSDS Sheet

Literature and Reviews


  1. Performance Optimization of Parallel-Like Ternary Organic Solar Cells through Simultaneous Improvement in Charge Generation and Transport, W. Hadmojo et al., Adv. Funct. Mater., 1808731 (2019); DOI: 10.1002/adfm.201808731.
  2. Donor polymer fluorination doubles the efficiency in non-fullerene organic photovoltaics, N. Bauer et al., . Mater. Chem. A, 5, 22536 (2017); DOI: 10.1039/c7ta07882j.
  3. Polymer Donors for High-performance Non-fullerene Organic Solar Cells, H. Fu et al., Angew. Chem. Int. Ed., 58 (14); 4442-4453 (2019); DOI: 10.1002/ange.201806291.
Return to the top