Pentafluorophenyldiphenylphosphate CAS 138687-69-1

Purity 97%+In StockPharmaceutical Standards
CAS No.138687-69-1
Molecular FormulaC18H28F5O2P
Molecular Weight402.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Pentafluorophenyldiphenylphosphate CAS 138687-69-1 chemical structure

Description

Pentafluorophenyldiphenylphosphate (CAS 138687-69-1), molecular formula C18H28F5O2P and molecular weight 402.38 g/mol, is a CATO reference standard with documented purity and traceability.

Pentafluorophenyldiphenylphosphate (C18H28F5O2P) contains organophosphorus functionality, a carboxylic acid group, 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, the carboxyl group imparts weak acidity; 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.

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 FormulaC18H28F5O2P
Molecular Weight402.38 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.5
CAS Registry Year (est.)1996
Halogen ContentF-containing

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