5-Oxo-1-phenyl-3-(triphenylphosphonio)-4,5-dihydro-1H-pyrrol-2-olate CAS 18092-17-6

Purity 97%+In StockPharmaceutical Standards
CAS No.18092-17-6
Molecular FormulaC28H22NO2P
Molecular Weight435.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Oxo-1-phenyl-3-(triphenylphosphonio)-4,5-dihydro-1H-pyrrol-2-olate CAS 18092-17-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 435.45 g/mol gives 5-Oxo-1-phenyl-3-(triphenylphosphonio)-4,5-dihydro-1H-pyrrol-2-olate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

5-Oxo-1-phenyl-3-(triphenylphosphonio)-4,5-dihydro-1H-pyrrol-2-olate (CAS 18092-17-6) is a high-purity analytical reference standard with the molecular formula C28H22NO2P and a molecular weight of 435.45 g/mol.

5-Oxo-1-phenyl-3-(triphenylphosphonio)-4,5-dihydro-1H-pyrrol-2-olate (C28H22NO2P) contains a steroid core, an amide group, organophosphorus functionality, a hydroxyl group, an ether linkage. 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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 FormulaC28H22NO2P
Molecular Weight435.45 g/mol
AppearancePale yellow to yellow crystalline powder
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)18.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Nitrogen Atoms1

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