o-Cresolphthalein Complexone sodium salt CAS 1423037-17-5

Purity 97%+In StockPharmaceutical Standards
CAS No.1423037-17-5
Molecular FormulaC32H31N2O12
Molecular WeightN/A
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

o-Cresolphthalein Complexone sodium salt CAS 1423037-17-5 chemical structure

Description

o-Cresolphthalein Complexone sodium salt (CAS 1423037-17-5) is a high-purity analytical reference standard with the molecular formula C32H31N2O12Na and a molecular weight of 658.59 g/mol.

o-Cresolphthalein Complexone sodium salt (C32H31N2O12Na) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).

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 FormulaC32H31N2O12 Na
Molecular Weight658.59 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)18.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms2

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