1-Neopentyl-2,4,6-triphenylpyridin-1-ium tetrafluoroborate CAS 81128-05-4
| CAS No. | 81128-05-4 |
| Molecular Formula | C28H28N |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Neopentyl-2,4,6-triphenylpyridin-1-ium tetrafluoroborate (CAS 81128-05-4) is a high-purity analytical reference standard with the molecular formula C28H28NBF4 and a molecular weight of 465.34 g/mol.
The molecular framework of 1-Neopentyl-2,4,6-triphenylpyridin-1-ium tetrafluoroborate (C28H28NBF4) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C28H28N BF4 |
| Molecular Weight | 465.34 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- N-(1-Cyanocyclohexyl)-2-((1-methyl-1H-imidazol-2-yl)thio)propanamide (CAS 876866-86-3)
- 4-(Imidazo[1,2-a]pyridin-2-yl)benzaldehyde (CAS 118000-48-9)
- Cyclobutyl(thiazol-2-yl)methanone (CAS 1443345-45-6)
- n-Methyl-2-(1h-tetrazol-5-yl)ethan-1-amine (CAS 40706-07-8)
- 3-Amino-1-(5-chlorothiophen-2-yl)-2-methylpropan-1-ol (CAS 1502057-52-4)
- (R)-2,2-dimethyl-1-(2-methyl-3-(trifluoromethyl)phenyl)propan-1-amine (CAS 1388109-61-2)
- 4-Hydroxypiperidine-d9 (CAS 134071-63-9)
- Boc-β-Phe(4-OMe)-OH (CAS 159990-12-2)
- 1-(4-Methoxyphenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 98534-83-9)
- Semaglutide impurity 57 (CAS 2773558-06-6)
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