Bis(4-fluorophenyl)(phenyl)phosphine oxide CAS 54300-32-2

Purity 97%+In StockPharmaceutical Standards
CAS No.54300-32-2
Molecular FormulaC18H13F2OP
Molecular Weight314.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Bis(4-fluorophenyl)(phenyl)phosphine oxide CAS 54300-32-2 chemical structure

Description

The occurrence of Bis(4-fluorophenyl)(phenyl)phosphine oxide is closely related to a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Bis(4-fluorophenyl)(phenyl)phosphine oxide (CAS 54300-32-2) is a high-purity analytical reference standard with the molecular formula C18H13F2OP and a molecular weight of 314.27 g/mol.

Owing to a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, fluorine substitution, Bis(4-fluorophenyl)(phenyl)phosphine oxide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 314.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), Bis(4-fluorophenyl)(phenyl)phosphine oxide 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 FormulaC18H13F2OP
Molecular Weight314.27 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at 2-8°C, 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)11.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1972
Halogen ContentF-containing

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