Carfilzomib Impurity 57 CAS CATO-C4X-102257

Purity >90%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-102257
Molecular FormulaC46H65N5O14
Molecular Weight912.03 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Carfilzomib Impurity 57 CAS CATO-C4X-102257 chemical structure

Description

CATO supplies Carfilzomib Impurity 57 (CAS CATO-C4X-102257), a pharmacopoeial impurity reference standard (molecular formula C46H65N5O14, MW 912.03 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Carfilzomib Impurity 57 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 912.03 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).

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 manufactures Carfilzomib Impurity 57 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC46H65N5O14
Molecular Weight912.03 g/mol
Purity>90%
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)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms5

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