Topiroxostat Impurity 54 CAS CATO-C4X-105554

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-105554
Molecular FormulaC13H11N7O
Molecular Weight281.27 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Topiroxostat Impurity 54 CAS CATO-C4X-105554 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 281.27 g/mol gives Topiroxostat Impurity 54 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Topiroxostat Impurity 54 (CAS CATO-C4X-105554) is a certified pharmaceutical impurity reference standard with the molecular formula C13H11N7O and a molecular weight of 281.27 g/mol.

Topiroxostat Impurity 54 (C13H11N7O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.

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 FormulaC13H11N7O
Molecular Weight281.27 g/mol
AppearancePale yellow to yellow crystalline powder
Purity>95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms7

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