Description

4,4,9,9-Tetraoctyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b’]dithiophene (CAS: 1209012-32-7) is a high-purity organic semiconductor material with the molecular formula C₄₈H₇₄S₂. This compound, also known by its IUPAC name 9,9,18,18-tetraoctyl-5,14-dithiapentacyclo[10.6.0.03,10.04,8.013,17]octadeca-1(12),2,4(8),6,10,13(17),15-heptaene, features a rigid indacenodithiophene (IDT) core functionalized with four octyl chains to enhance solubility and processability. Its extended π-conjugated system and electron-rich dithiophene backbone make it an excellent candidate for optoelectronic applications, including organic field-effect transistors (OFETs), organic photovoltaics (OPVs), and light-emitting diodes (OLEDs). The material exhibits excellent thermal stability, high charge carrier mobility, and tunable electronic properties, making it a valuable building block for advanced organic electronic devices. Available in milligram to gram quantities, this compound is rigorously characterized by NMR, HPLC, and mass spectrometry to ensure superior quality for research and industrial applications.

Properties

• CAS Number: 1209012-32-7
• Complexity: 793
• IUPAC Name: 9,9,18,18-tetraoctyl-5,14-dithiapentacyclo[10.6.0.03,10.04,8.013,17]octadeca-1(12),2,4(8),6,10,13(17),15-heptaene
• InChI: InChI=1S/C48H74S2/c1-5-9-13-17-21-25-31-47(32-26-22-18-14-10-6-2)41-29-35-49-45(41)39-38-44-40(37-43(39)47)46-42(30-36-50-46)48(44,33-27-23-19-15-11-7-3)34-28-24-20-16-12-8-4/h29-30,35-38H,5-28,31-34H2,1-4H3
• InChI Key: HPDXZMSBVNAHIB-UHFFFAOYSA-N
• Exact Mass: 714.52319471
• Molecular Formula: C48H74S2
• Molecular Weight: 715.2
• SMILES: CCCCCCCCC1(C2=C(C3=CC4=C(C=C31)C5=C(C4(CCCCCCCC)CCCCCCCC)C=CS5)SC=C2)CCCCCCCC
• Topological: 56.5
• Monoisotopic Mass: 714.52319471
• Synonyms: IDT8, SCHEMBL2416793, HPDXZMSBVNAHIB-UHFFFAOYSA-N, 4,4,9,9-tetraoctyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b’]dithiophene, 4,9-dihydro-4,4,9,9-tetraoctyl-s-indaceno[1,2-b:5,6-b’]dithiophene, 1209012-32-7

Application

4,4,9,9-Tetraoctyl-4,9-dihydro-s-indaceno[1,2-b:5,6-b’]dithiophene is widely used as a key component in the fabrication of high-performance organic electronic devices. Its π-conjugated structure and high hole mobility make it ideal for use as a p-type semiconductor in organic thin-film transistors (OTFTs). The compound is also employed in bulk heterojunction solar cells due to its strong light absorption and efficient charge transport properties. Additionally, researchers utilize this material in the development of OLEDs for its ability to form stable amorphous films with excellent electroluminescent characteristics.

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