Rosuvastatin EP Impurity M(Calcium salt) CAS 847849-66-5(Free Acid)

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.847849-66-5(Free Acid)
Molecular Formula2*C22H28N3O6S
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Rosuvastatin EP Impurity M(Calcium salt) CAS 847849-66-5(Free Acid) chemical structure

Description

Compared with other compounds in its class, the molecular weight of 502.62 g/mol gives Rosuvastatin EP Impurity M(Calcium salt) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

As a process- or degradation-related impurity, Rosuvastatin EP Impurity M(Calcium salt) (CAS 847849-66-5(Free Acid), C22H28N3O6SCa) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Rosuvastatin EP Impurity M(Calcium salt) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 502.62 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), Rosuvastatin EP Impurity M(Calcium salt) 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 Formula2*C22H28N3O6S Ca
Molecular Weight502.62 g/mol
Purity>95%
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)10.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms3
Sulfur Atoms1

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