2,5-Bis(4-fluorophenyl)thiophene CAS 883793-48-4
| CAS No. | 883793-48-4 |
| Molecular Formula | C16H10F2S |
| Molecular Weight | 272.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,5-Bis(4-fluorophenyl)thiophene (CAS 883793-48-4) is a high-purity analytical reference standard with the molecular formula C16H10F2S and a molecular weight of 272.31 g/mol.
Based on its molecular formula C16H10F2S, 2,5-Bis(4-fluorophenyl)thiophene contains sulfur-containing functionality, fluorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 272.31 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H10F2S |
| Molecular Weight | 272.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Bis Standards
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Recommended Standards
- 2-(2-Ethyl-1-piperidinyl)-5-(trifluoromethyl)-phenylamine (CAS 946669-38-1)
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- 1-Benzyl-n-(2,2,2-trifluoroethyl)piperidin-4-amine (CAS 847837-36-9)
- 2-Butyl-9-methyl-8-(2H-1,2,3-triazol-2-yl)-9H-purin-6-amine (CAS 496955-42-1)
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- 2-(tert-Butyl)-5-nitrobenzoic acid (CAS 14034-90-3)
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- (7E,14E,21E)-6H,29H-phthalocyanin-2,3,9,10,16,17,23,24-octaol (CAS 121244-81-3)
- [2,2'-Bipyridine]-4,4'(1H,1'H)-dithione (CAS 101028-40-4)
- 1-(1-ethyl-3-methyl-1H-pyrazol-4-yl)-2,2,2-trifluoroethanol (CAS 1174851-04-7)
- tert-Butyl 4-(tetramethyl-1,3,2-dioxaborolan-2-yl)butanoate (CAS 1454901-93-9)
- Methyl 3-chloro-5-(trifluoromethyl)pyridine-2-carboximidate hydrochloride (CAS 1672675-24-9)
- 5-Chloro-2-ethoxy-3-methoxybenzaldehyde (CAS 692280-19-6)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
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