Fudosteine Impurity 54 CAS CATO-C4X-144754

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-144754
Molecular FormulaC18H36N2O10S2
Molecular Weight504.62 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fudosteine Impurity 54 CAS CATO-C4X-144754 chemical structure

Description

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

CATO supplies Fudosteine Impurity 54 (CAS CATO-C4X-144754), a pharmacopoeial impurity reference standard (molecular formula C18H36N2O10S2, MW 504.62 g/mol) used for the identification and quantification of trace impurities in APIs.

Fudosteine Impurity 54 (C18H36N2O10S2) contains an amide group, a sulfone group, a carboxylic acid 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC18H36N2O10S2
Molecular Weight504.62 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
Nitrogen Atoms2
Sulfur Atoms2

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