Triphenyl(propyl)phosphoniumchloride CAS 16721-43-0
| CAS No. | 16721-43-0 |
| Molecular Formula | C21H22P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Triphenyl(propyl)phosphoniumchloride (CAS 16721-43-0), a certified reference material (molecular formula C21H22PCl, MW 340.83 g/mol) for analytical method development and quality control.
Triphenyl(propyl)phosphoniumchloride (C21H22PCl) contains organophosphorus functionality, chlorine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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.
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 | C21H22P Cl |
| Molecular Weight | 340.83 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
Related Triphenyl Standards
- Triphenyl phosphite (CAS 101-02-0)
- Triphenyl(p-tolyl)phosphonium iodide (CAS 10111-23-6)
- 2,2,6-Triphenyl-2H-pyran-4(3H)-one (CAS 102593-55-5)
- 1-(3,3,5-Triphenyl-3H-pyrrol-2-yl)isoquinoline (CAS 10425-48-6)
- 1-(3,4,5-Triphenyl-1H-pyrrol-2-yl)isoquinoline (CAS 10425-52-2)
- 2,4,6-Triphenyl-1-(p-tolyl)pyridin-1-ium tetrafluoroborate (CAS 107108-26-9)
- Triphenyl(3,4,5-trimethoxybenzyl)phosphonium chloride (CAS 108683-61-0)
- (S)-1,1,2-Triphenyl-1,2-ethanediol (CAS 108998-83-0)
Recommended Standards
- 2-(Benzylamino)-4-(4-chlorophenyl)pyridine-3-carbonitrile (CAS 478245-78-2)
- 4-[(2,3-Dihydro-1H-inden-5-yl)oxy]butanoic acid (CAS 929341-05-9)
- 2-Methyl-3-(3-oxobutyl)quinolin-4(1H)-one (CAS 37126-99-1)
- N-Succinimidyl 3-Methoxy-4-nitrobenzoate (CAS 2006277-78-5)
- 2-Cyclopropoxy-6-(trifluoromethyl)benzonitrile (CAS 1243377-24-3)
- 3,4-Dimethyl-N-(2-morpholino-2-(thiophen-3-yl)ethyl)benzamide (CAS 946374-66-9)
- 5-(hydroxymethyl)-5-(propan-2-yl)piperidin-2-one (CAS 1909337-78-5)
- (1R,4R)-2-[(4-Dimethylamino-cyclohexyl)-methyl-amino]-ethanol (CAS 1353976-42-7)
- Codeine 6-Methanesulfonate (1.0mg/ml in Acetonitrile) (CAS 22952-80-3)
- D-β-Asp15-Tirzepatide (CAS CATO-CPTD788930)
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