5,5''-Di([1,1'-biphenyl]-4-yl)-2,2':5',2''-terthiophene CAS 256342-43-5
| CAS No. | 256342-43-5 |
| Molecular Formula | C36H24S3 |
| Molecular Weight | 552.77 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,5''-Di([1,1'-biphenyl]-4-yl)-2,2':5',2''-terthiophene (CAS 256342-43-5) is a high-purity analytical reference standard with the molecular formula C36H24S3 and a molecular weight of 552.77 g/mol.
Based on its molecular formula C36H24S3, 5,5''-Di([1,1'-biphenyl]-4-yl)-2,2':5',2''-terthiophene contains sulfur-containing functionality, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 552.77 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5,5''-Di([1,1'-biphenyl]-4-yl)-2,2':5',2''-terthiophene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C36H24S3 |
| Molecular Weight | 552.77 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 25.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Sulfur Atoms | 3 |
Related Di Standards
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- Ethyl 2-(methylthio)-4-((4-(trifluoromethyl)phenyl)amino)pyrimidine-5-carboxylate (CAS 339019-43-1)
- 6-Bromo-5-chloro-1H-imidazo[4,5-b]pyridin-2(3H)-one (CAS 1207627-28-8)
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