Pyridinium hexafluorophosphate CAS 16941-15-4
| CAS No. | 16941-15-4 |
| Molecular Formula | HF6P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Pyridinium hexafluorophosphate (HF6PC5H5N) is characterized by organophosphorus functionality, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Pyridinium hexafluorophosphate (CAS 16941-15-4) is a high-purity analytical reference standard with the molecular formula HF6PC5H5N and a molecular weight of 225.07 g/mol.
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 | HF6P C5H5N |
| Molecular Weight | 225.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 0.5 |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Pyridinium Standards
- N-pyridinium triflate (CAS 107263-95-6)
- Pyridinium, 5-ethenyl-1,2-dimethyl-, chloride , polymer with 5-ethenyl-2-methylpyridine (CAS 125715-38-0)
- Pyridinium, 4,4′,4′′,4′′′-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis[1-ethyl- (CAS 149270-91-7)
- Pyridinium Formate (CAS 15066-28-1)
- Pyridinium, 3,3′,3′′,3′′′-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis[1-ethyl-, tetrachloride (CAS 211360-11-1)
- Pyridinium, 4-(Hydroxymethyl)-1-(phenylmethyl)-, chloride (CAS 219975-80-1)
- Pyridinium, 2,2′,2′′,2′′′-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis[1-ethyl-, tetrachloride (CAS 223723-78-2)
- Pyridinium, 2-ethenyl-1-methyl-, 4-methylbenzenesulfonate , homopolymer (CAS 26045-14-7)
Recommended Standards
- [4-(Trifluoromethyl)benzyl]hydrazine (CAS 2924-77-8)
- Physostigmine salicylate (P1600000) (CAS 54-64-7)
- 2-(4-Isopropyl-3,5-dimethoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1305339-26-7)
- 3-Chloro-2-(4-chlorothiazolo[5,4-c]pyridin-2-yl)benzonitrile (CAS 1365992-73-9)
- Admilparant (CAS 2170126-74-4)
- 3,4-Dichloro-2,6-difluoroaniline (CAS 1807183-78-3)
- 2-(Methanesulfonylmethyl)benzoic acid (CAS 18435-98-8)
- 4-Chloro-6-cyclohexyl-1,3,5-triazin-2-amine (CAS 1303967-42-1)
- Opevesostat (CAS 2231294-96-3)
- Tau Peptide (244-274) (Repeat 1 Domain) trifluoroacetate salt (CAS 330456-24-1)
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