Desonide Impurity 1(Desonide 9, 11-Epoxide) CAS 39672-75-8

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.39672-75-8
Molecular FormulaC24H30O6
Molecular Weight414.49 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Desonide Impurity 1(Desonide 9, 11-Epoxide) CAS 39672-75-8 chemical structure

Description

The occurrence of Desonide Impurity 1(Desonide 9, 11-Epoxide) is closely related to a flavonoid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

As a process- or degradation-related impurity, Desonide Impurity 1(Desonide 9, 11-Epoxide) (CAS 39672-75-8, C24H30O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Owing to a flavonoid core, a hydroxyl group, an ether linkage, Desonide Impurity 1(Desonide 9, 11-Epoxide) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 414.49 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

As a certified reference material (CRM), Desonide Impurity 1(Desonide 9, 11-Epoxide) meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC24H30O6
Molecular Weight414.49 g/mol
AppearancePale yellow to yellow crystalline powder
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1968

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