Mometasone Impurity 50 CAS 23776-75-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.23776-75-2
Molecular FormulaC23H30O6S
Molecular Weight434.55 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Mometasone Impurity 50 CAS 23776-75-2 chemical structure

Description

CATO supplies Mometasone Impurity 50 (CAS 23776-75-2), a pharmacopoeial impurity reference standard (molecular formula C23H30O6S, MW 434.55 g/mol) used for the identification and quantification of trace impurities in APIs.

Mometasone Impurity 50 (C23H30O6S) contains a flavonoid core, a sulfone 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).

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.

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 FormulaC23H30O6S
Molecular Weight434.55 g/mol
Purity>95%
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)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1963
Sulfur Atoms1

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