Tetrabutylphosphonium Hexafluorophosphate CAS 111928-21-3
| CAS No. | 111928-21-3 |
| Molecular Formula | C16H36P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Tetrabutylphosphonium Hexafluorophosphate (CAS 111928-21-3) is a high-purity analytical reference standard with the molecular formula C16H36PF6P and a molecular weight of 404.40 g/mol.
Based on its molecular formula C16H36PF6P, Tetrabutylphosphonium Hexafluorophosphate contains organophosphorus functionality, fluorine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 404.40 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.
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 | C16H36P F6P |
| Molecular Weight | 404.40 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -4.0 |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | F-containing |
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