Minoxidil Impurity 41 CAS CATO-C4X-170041

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-170041
Molecular FormulaC9H11N5O
Molecular Weight205.22 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Minoxidil Impurity 41 CAS CATO-C4X-170041 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 Minoxidil Impurity 41 (CAS CATO-C4X-170041), a pharmacopoeial impurity reference standard (molecular formula C9H11N5O, MW 205.22 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Minoxidil Impurity 41 (C9H11N5O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

As a certified reference material (CRM), Minoxidil Impurity 41 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 FormulaC9H11N5O
Molecular Weight205.22 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms5

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