Brimonidine Impurity 23 CAS CATO-C4X-156623

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-156623
Molecular FormulaC11H9N5
Molecular Weight211.22 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Brimonidine Impurity 23 CAS CATO-C4X-156623 chemical structure

Description

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.

CATO supplies Brimonidine Impurity 23 (CAS CATO-C4X-156623), a pharmacopoeial impurity reference standard (molecular formula C11H9N5, MW 211.22 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula C11H9N5, Brimonidine Impurity 23 contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 211.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).

As a certified reference material (CRM), Brimonidine Impurity 23 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 FormulaC11H9N5
Molecular Weight211.22 g/mol
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)10.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms5

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