Methyltris(4-fluorophenyl)phosphonium iodide CAS 18606-51-4
| CAS No. | 18606-51-4 |
| Molecular Formula | C19H15F3P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Methyltris(4-fluorophenyl)phosphonium iodide is closely related to organophosphorus functionality, fluorine/iodine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Methyltris(4-fluorophenyl)phosphonium iodide (CAS 18606-51-4) is a high-purity analytical reference standard with the molecular formula C19H15F3PI and a molecular weight of 458.20 g/mol.
Based on its molecular formula C19H15F3PI, Methyltris(4-fluorophenyl)phosphonium iodide contains organophosphorus functionality, fluorine/iodine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 458.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyltris(4-fluorophenyl)phosphonium iodide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H15F3P I |
| Molecular Weight | 458.20 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) | 10.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | F/I-containing |
Related Methyltris Standards
Recommended Standards
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- 6-Phenylbenzo[d]thiazol-2-amine (CAS 73458-38-5)
- (S)-3-Bromo-5-iodo-2-(1-methoxyethyl)pyridine (CAS 2641451-76-3)
- 2-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](methyl)amino}-1-oxo-1,2-dihydroisoquinoline-4-carboxamide (CAS 339106-89-7)
- Semaglutide-d15 (CAS 910463-68-2(non-labelled))
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