Diphenyl((phenylsulfonyl)methyl)phosphine oxide CAS 94333-12-7

Purity 97%+In StockPharmaceutical Standards
CAS No.94333-12-7
Molecular FormulaC19H17O3PS
Molecular Weight356.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Diphenyl((phenylsulfonyl)methyl)phosphine oxide CAS 94333-12-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 356.38 g/mol gives Diphenyl((phenylsulfonyl)methyl)phosphine oxide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Diphenyl((phenylsulfonyl)methyl)phosphine oxide (CAS 94333-12-7), a certified reference material (molecular formula C19H17O3PS, MW 356.38 g/mol) for analytical method development and quality control.

Owing to a steroid core, a sulfone group, a phosphonate group, a hydroxyl group, an ether linkage, Diphenyl((phenylsulfonyl)methyl)phosphine oxide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 356.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC19H17O3PS
Molecular Weight356.38 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
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.)1983
Sulfur Atoms1

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