4,4-Bis(2-ethylhexyl)-4H-cyclopenta[1,2-b:5,4-b']dithiophene

• CAT Number: L029030
• CAS Number: 365547-20-2
• Molecular Formula: C25H38S2
• Molecular Weight: 402.70
• Purity: ≥95%
• IUPAC Name: 7,7-bis(2-ethylhexyl)-3,11-dithiatricyclo[6.3.0.02,6]undeca-1(8),2(6),4,9-tetraene
• InChI: InChI=1S/C25H38S2/c1-5-9-11-19(7-3)17-25(18-20(8-4)12-10-6-2)21-13-15-26-23(21)24-22(25)14-16-27-24/h13-16,19-20H,5-12,17-18H2,1-4H3
• InChIKey: NUCIQEWGTLOQTR-UHFFFAOYSA-N
• SMILES: CCCCC(CC)CC1(C2=C(C3=C1C=CS3)SC=C2)CC(CC)CCCC

4,4-Bis(2-ethylhexyl)-4H-cyclopenta[1,2-b:5,4-b’]dithiophene（Cat No.:L029030）is a highly conjugated, electron-rich organic compound featuring a fused cyclopentadithiophene (CPDT) core substituted with two branched 2-ethylhexyl alkyl chains. These bulky side chains improve solubility in organic solvents and facilitate film formation in solution-processed electronics. The extended π-conjugation of the CPDT core makes it a valuable building block in organic semiconductors, especially for applications in organic photovoltaics (OPVs), field-effect transistors (OFETs), and light-emitting diodes (OLEDs). Its structural features contribute to strong intermolecular interactions, high charge mobility, and tunable optoelectronic properties in advanced functional materials.