4-Phenyl-2,6-di-p-tolylpyrylium tetrafluoroborate CAS 4649-95-0

Purity 97%+In StockPharmaceutical Standards
CAS No.4649-95-0
Molecular FormulaC25H21O
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-Phenyl-2,6-di-p-tolylpyrylium tetrafluoroborate CAS 4649-95-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 424.24 g/mol gives 4-Phenyl-2,6-di-p-tolylpyrylium tetrafluoroborate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-Phenyl-2,6-di-p-tolylpyrylium tetrafluoroborate (CAS 4649-95-0), molecular formula C25H21OBF4 and molecular weight 424.24 g/mol, is a CATO reference standard with documented purity and traceability.

4-Phenyl-2,6-di-p-tolylpyrylium tetrafluoroborate (C25H21OBF4) contains a steroid core, a hydroxyl group, an ether linkage, fluorine substitution. 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.

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), 4-Phenyl-2,6-di-p-tolylpyrylium 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 FormulaC25H21O BF4
Molecular Weight424.24 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)13.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentF-containing

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Why CATO?