Bis(p-sulfonatophenyl)phenylphosphine dipotassium salt CAS 151888-20-9

Purity 97%+In StockPharmaceutical Standards
CAS No.151888-20-9
Molecular FormulaC18H13O6PS2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Bis(p-sulfonatophenyl)phenylphosphine dipotassium salt CAS 151888-20-9 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Bis(p-sulfonatophenyl)phenylphosphine dipotassium salt.

Bis(p-sulfonatophenyl)phenylphosphine dipotassium salt (CAS 151888-20-9) is a high-purity analytical reference standard with the molecular formula C18H13O6PS2K and a molecular weight of 459.49 g/mol.

Based on its molecular formula C18H13O6PS2K, Bis(p-sulfonatophenyl)phenylphosphine dipotassium salt contains a flavonoid core, a sulfone group, a phosphate ester group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 459.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC18H13O6PS2 2*K
Molecular Weight459.49 g/mol
Purity97%+
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2000
Sulfur Atoms2

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