Methylprednisolone Impurity 80 CAS CATO-C4X-191980

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-191980
Molecular FormulaC49H64O11
Molecular Weight829.03 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Methylprednisolone Impurity 80 CAS CATO-C4X-191980 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 829.03 g/mol gives Methylprednisolone Impurity 80 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Methylprednisolone Impurity 80 (CAS CATO-C4X-191980), a pharmacopoeial impurity reference standard (molecular formula C49H64O11, MW 829.03 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system, Methylprednisolone Impurity 80 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 829.03 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), Methylprednisolone Impurity 80 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 FormulaC49H64O11
Molecular Weight829.03 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)18.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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