Phenolphthaleindiphosphatecalciumsalt CAS 94465-66-4

Purity 97%+In StockPharmaceutical Standards
CAS No.94465-66-4
Molecular FormulaC20H12O10P2
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Phenolphthaleindiphosphatecalciumsalt CAS 94465-66-4 chemical structure

Description

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.

Phenolphthaleindiphosphatecalciumsalt (CAS 94465-66-4), molecular formula C20H12O10P2Ca and molecular weight 514.33 g/mol, is a CATO reference standard with documented purity and traceability.

Phenolphthaleindiphosphatecalciumsalt (C20H12O10P2Ca) contains a flavonoid core, a phosphate ester group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC20H12O10P2 2*Ca
Molecular Weight514.33 g/mol
AppearancePale yellow to yellow crystalline powder
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)15.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983

Recommended Standards

Why CATO?