4H-Cyclopenta[2,1-b:3,4-b']dithiophene

• CAT Number: L039134
• CAS Number: 389-58-2
• Molecular Formula: C9H6S2
• Molecular Weight: 178.30
• Purity: ≥95%
• IUPAC Name: 3,11-dithiatricyclo[6.3.0.02,6]undeca-1(8),2(6),4,9-tetraene
• InChI: InChI=1S/C9H6S2/c1-3-10-8-6(1)5-7-2-4-11-9(7)8/h1-4H,5H2
• InChIKey: UITASDKJJNYORO-UHFFFAOYSA-N
• SMILES: C1C2=C(C3=C1C=CS3)SC=C2

4H-Cyclopenta[2,1-b:3,4-b’]dithiophene（Cat No.:L039134）is a fused heterocyclic compound composed of a cyclopentadiene core flanked by two thiophene rings. Its rigid, planar structure and extended conjugation make it a valuable building block in organic electronics, particularly in the development of semiconducting materials for organic field-effect transistors (OFETs), organic photovoltaics (OPVs), and conductive polymers. The sulfur atoms contribute to electron-rich characteristics and enhance charge transport. This compound is often used to synthesize donor–acceptor systems, enabling fine-tuning of optoelectronic properties. Its structural versatility supports applications in next-generation flexible and low-cost electronic devices.