Selexipag Impurity 33 CAS CATO-C4X-196133

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-196133
Molecular FormulaC7H16ClN
Molecular Weight149.66 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Selexipag Impurity 33 CAS CATO-C4X-196133 chemical structure

Description

As a certified reference material (CRM), Selexipag Impurity 33 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.

As a process- or degradation-related impurity, Selexipag Impurity 33 (CAS CATO-C4X-196133, C7H16ClN) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

The molecular framework of Selexipag Impurity 33 (C7H16ClN) is characterized by chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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 FormulaC7H16ClN
Molecular Weight149.66 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)0.0
Halogen ContentCl-containing
Nitrogen Atoms1

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