Topiroxostat Impurity 62 CAS CATO-C4X-105562

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-105562
Molecular FormulaC19H13N9
Molecular Weight367.37 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Topiroxostat Impurity 62 CAS CATO-C4X-105562 chemical structure

Description

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.

Topiroxostat Impurity 62 (CAS CATO-C4X-105562) is a certified pharmaceutical impurity reference standard with the molecular formula C19H13N9 and a molecular weight of 367.37 g/mol.

Topiroxostat Impurity 62 (C19H13N9) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC19H13N9
Molecular Weight367.37 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)18.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms9

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