Description
5”-Bromo-3′,3”-dihexyl-[2,2′:5′,2”-terthiophene]-5-carbaldehyde (CAS No. 1628940-31-7) is a high-purity conjugated organic compound with the molecular formula C25H31BrOS3. This terthiophene derivative features a bromo-substituted thiophene core, hexyl side chains for enhanced solubility, and a reactive carbaldehyde functional group, making it an ideal building block for organic electronics and optoelectronic materials. Its extended π-conjugation and tailored electronic properties are optimized for applications in organic semiconductors, photovoltaic devices, and OLEDs. With a molecular weight of 523.61 g/mol, this compound is supplied as a crystalline solid with >95% purity (HPLC) and is rigorously characterized by 1H NMR, 13C NMR, and mass spectrometry. Store under inert atmosphere at -20°C to prevent degradation.
Properties
- CAS Number: 1628940-31-7
- Complexity: 505
- IUPAC Name: 5-[5-(5-bromo-3-hexyl-2-thienyl)-3-hexyl-2-thienyl]thiophene-2-carbaldehyde
- InChI: InChI=1S/C25H31BrOS3/c1-3-5-7-9-11-18-15-22(29-24(18)21-14-13-20(17-27)28-21)25-19(16-23(26)30-25)12-10-8-6-4-2/h13-17H,3-12H2,1-2H3
- InChI Key: BHEQNSDXCBNBQE-UHFFFAOYSA-N
- Exact Mass: 522.07204
- Molecular Formula: C25H31BrOS3
- Molecular Weight: 523.6
- SMILES: CCCCCCC1=C(SC(=C1)C2=C(C=C(S2)Br)CCCCCC)C3=CC=C(S3)C=O
- Topological: 102
- Monoisotopic Mass: 522.07204
- Synonyms: 5”-Bromo-3′,3”-dihexyl-[2,2′:5′,2”-terthiophene]-5-carbaldehyde, 1628940-31-7, 3T-CHO-Br
Application
This bromo-functionalized terthiophene aldehyde serves as a key precursor for synthesizing conjugated polymers and small molecules in organic electronics. Its structure enables precise tuning of HOMO-LUMO levels in donor-acceptor systems for photovoltaic applications. The compound is particularly valuable in creating narrow bandgap materials for organic solar cells and as a building block for thiophene-based fluorescent probes. The reactive aldehyde group facilitates further functionalization through condensation or nucleophilic addition reactions.
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