1-(4-Nitrophenyl)-2,4,6-triphenylpyridin-1-ium tetrafluoroborate CAS 73286-93-8
| CAS No. | 73286-93-8 |
| Molecular Formula | C29H21N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(4-Nitrophenyl)-2,4,6-triphenylpyridin-1-ium tetrafluoroborate (CAS 73286-93-8) is a high-purity analytical reference standard with the molecular formula C29H21N2O2BF4 and a molecular weight of 516.30 g/mol.
1-(4-Nitrophenyl)-2,4,6-triphenylpyridin-1-ium tetrafluoroborate (C29H21N2O2BF4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C29H21N2O2 BF4 |
| Molecular Weight | 516.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Nitrophenyl Standards
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Recommended Standards
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- 3-(4-Hydroxyphenyl)propanehydrazide (CAS 65330-63-4)
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- 2-(3-Formyl-1H-indol-1-yl)-N-(2-methoxyethyl)acetamide (CAS 347319-85-1)
- 3-(2-Fluoro-5-iodophenyl)-1,2,4-oxadiazole (CAS 1262413-07-9)
- 4-Amino-6-chloro-2-(difluoromethyl)pyridin-3-ol (CAS 1805056-44-3)
- 6-Methyl-5,7-dihydroindolo[2,3-b]carbazole (CAS 112485-52-6)
- Proinsulin C-Peptide (55-89) (human) (CAS 11097-48-6)
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