2,6-Diphenyl-4-(p-tolyl)pyrylium tetrafluoroborate CAS 2559-35-5
| CAS No. | 2559-35-5 |
| Molecular Formula | C24H19O |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,6-Diphenyl-4-(p-tolyl)pyrylium tetrafluoroborate (CAS 2559-35-5) is a high-purity analytical reference standard with the molecular formula C24H19OBF4 and a molecular weight of 410.22 g/mol.
Structurally, 2,6-Diphenyl-4-(p-tolyl)pyrylium tetrafluoroborate (C24H19OBF4) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.5, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 410.22 g/mol, it falls into the moderately-high-molecular-weight range. 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), 2,6-Diphenyl-4-(p-tolyl)pyrylium tetrafluoroborate 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 | C24H19O BF4 |
| Molecular Weight | 410.22 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, DMSO |
| 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.) | 1957 |
| Halogen Content | F-containing |
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- Pentachloropseudilin (CAS 69640-38-6)
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- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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