Order Code: B461
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Note: This material (DPPDPy2Br) has been used in our own lab by Ossila chemists for the synthesis of DPPDPyBT (n-type).

General Information

CAS number 1455028-34-8
Chemical formula C56H88Br2N4O2
Molecular weight 1009.13 g/mol
  • PyDPP
  • 3,6-Bis(5-bromopyridin-2-yl)-2,5-bis(2-octyldodecyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione
  • 3,6- Bis(5-bromopyridin-2-yl)-2,5-bis(2-octyldodecyl)pyrrolo[3,4-c]- pyrrole-1,4(2H,5H)-dione
Classification / Family Pyrrolo[3,4-c]pyrrole, Organic semiconducting materials, Semiconductor synthesis, Low band-gap polymers, OFETs, OLED, Organic photovoltaics, Polymer solar cells


Product Details

Purity >97%
Melting point No data available
Appearance Red/pink powder



Chemical structure of DPPDPy2Br, CAS No. 1455028-34-8.



3,6-Bis(5-bromopyridin-2-yl)-2,5-bis(2-octyldodecyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (DPPDPy2Br) is a pyridine-flanked diketopyrrolopyrrole building block for the synthesis of n-type polymer semiconductors, in the application of OFETs and OPVs. As both diketopyrrolopyrrole and pyridyl units are electron-deficient, they lower the HOMO energy level of the polymer semiconductors - making the polymer suitable as an electron acceptor with good electron mobilities.


Literature and Reviews

  1. Record High Electron Mobility of 6.3 cm2V-1s-1 Achieved for Polymer Semiconductors Using a New Building Block, B. Sun et al., Adv. Mater., 26, 2636-2642 (2014).
  2. A pyridine-flanked diketopyrrolopyrrole (DPP)-based donor–acceptor polymer showing high mobility in ambipolar and n-channel organic thin film transistors, B. Sun, Polym. Chem., 6, 938-945 (2015)